diff --git a/package-lock.json b/package-lock.json
index 7551d92..0f236cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -46,9 +46,9 @@
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+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.0.tgz",
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@@ -571,9 +571,9 @@
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+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.13.0.tgz",
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@@ -862,12 +862,6 @@
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@@ -936,9 +930,9 @@
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+      "version": "1.0.30000935",
+      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000935.tgz",
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@@ -1421,30 +1415,63 @@
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-      "resolved": "https://registry.npmjs.org/connect/-/connect-3.4.0.tgz",
-      "integrity": "sha1-7oeJo71GBL/aOdvPHTu0gt/mzyQ=",
+      "version": "3.6.6",
+      "resolved": "https://registry.npmjs.org/connect/-/connect-3.6.6.tgz",
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-        "finalhandler": "0.4.0",
-        "parseurl": "~1.3.0",
-        "utils-merge": "1.0.0"
+        "debug": "2.6.9",
+        "finalhandler": "1.1.0",
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-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
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           "dev": true,
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+            "ms": "2.0.0"
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+        "escape-html": {
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+          "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+          "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=",
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+          "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.0.tgz",
+          "integrity": "sha1-zgtoVbRYU+eRsvzGgARtiCU91/U=",
+          "dev": true,
+          "requires": {
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+            "encodeurl": "~1.0.1",
+            "escape-html": "~1.0.3",
+            "on-finished": "~2.3.0",
+            "parseurl": "~1.3.2",
+            "statuses": "~1.3.1",
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-          "resolved": "http://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
-          "integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg=",
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+          "dev": true
+        },
+        "statuses": {
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+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.3.1.tgz",
+          "integrity": "sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4=",
+          "dev": true
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+          "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+          "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=",
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@@ -1510,9 +1537,9 @@
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-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.0.tgz",
-      "integrity": "sha512-kLRC6ncVpuEW/1kwrOXYX6KQASCVtrh1gQr/UiaVgFlf9WE5Vp+lNe5+h3LuMr5PAucWnnEXwH0nQHRH/gpGtw==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.4.tgz",
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@@ -1653,9 +1680,9 @@
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-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.0.tgz",
-      "integrity": "sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
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       "dev": true,
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@@ -2006,9 +2033,9 @@
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-      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.6.1.tgz",
-      "integrity": "sha512-vM58DwdnKmty+FSPzT14K9JXb90H+j5emaR4KYbr2KTIz00WHGbWOe5ghQTx233ZCLZtrGDALzKwcjEtSt35mA==",
+      "version": "3.7.1",
+      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.7.1.tgz",
+      "integrity": "sha512-07z8uv2wMyS51kKhD1KsdXJg5WQ6t93RneqRxUHnskXVtlYYkLqM0gqStQZ3pj073g687jPCHrqNfCzawLYh5g==",
       "dev": true,
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@@ -2053,6 +2080,12 @@
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       }
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+    "encodeurl": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=",
+      "dev": true
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       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.1.tgz",
@@ -2124,13 +2157,13 @@
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-      "resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
-      "integrity": "sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+      "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
       "dev": true,
       "requires": {
         "cross-spawn": "^6.0.0",
-        "get-stream": "^3.0.0",
+        "get-stream": "^4.0.0",
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         "npm-run-path": "^2.0.0",
         "p-finally": "^1.0.0",
@@ -2338,9 +2371,9 @@
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-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.4.tgz",
-      "integrity": "sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==",
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.7.tgz",
+      "integrity": "sha512-Pxm6sI2MeBD7RdD12RYsqaP0nMiwx8eZBXCa6z2L+mRHm2DYrOYwihmhjpkdjUHwQhslWQjRpEgNq4XvBmaAuw==",
       "dev": true,
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@@ -2357,7 +2390,8 @@
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           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -2366,7 +2400,7 @@
           "optional": true
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-          "version": "1.1.4",
+          "version": "1.1.5",
           "bundled": true,
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@@ -2378,19 +2412,21 @@
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           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
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           }
         },
         "chownr": {
-          "version": "1.0.1",
+          "version": "1.1.1",
           "bundled": true,
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@@ -2398,17 +2434,20 @@
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           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
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           "version": "1.1.0",
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-          "dev": true
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@@ -2426,7 +2465,7 @@
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-          "version": "0.5.1",
+          "version": "0.6.0",
           "bundled": true,
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@@ -2475,7 +2514,7 @@
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-          "version": "7.1.2",
+          "version": "7.1.3",
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@@ -2495,12 +2534,12 @@
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-          "version": "0.4.21",
+          "version": "0.4.24",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "safer-buffer": "^2.1.0"
+            "safer-buffer": ">= 2.1.2 < 3"
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@@ -2525,7 +2564,8 @@
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           "version": "2.0.3",
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -2537,6 +2577,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2551,6 +2592,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2558,19 +2600,21 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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-          "version": "2.2.4",
+          "version": "2.3.5",
           "bundled": true,
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-            "safe-buffer": "^5.1.1",
+            "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
           }
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         "minizlib": {
-          "version": "1.1.0",
+          "version": "1.2.1",
           "bundled": true,
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@@ -2582,6 +2626,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2593,7 +2638,7 @@
           "optional": true
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-          "version": "2.2.0",
+          "version": "2.2.4",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -2604,18 +2649,18 @@
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         "node-pre-gyp": {
-          "version": "0.10.0",
+          "version": "0.10.3",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
             "detect-libc": "^1.0.2",
             "mkdirp": "^0.5.1",
-            "needle": "^2.2.0",
+            "needle": "^2.2.1",
             "nopt": "^4.0.1",
             "npm-packlist": "^1.1.6",
             "npmlog": "^4.0.2",
-            "rc": "^1.1.7",
+            "rc": "^1.2.7",
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             "semver": "^5.3.0",
             "tar": "^4"
@@ -2632,13 +2677,13 @@
           }
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-          "version": "1.0.3",
+          "version": "1.0.5",
           "bundled": true,
           "dev": true,
           "optional": true
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         "npm-packlist": {
-          "version": "1.1.10",
+          "version": "1.2.0",
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@@ -2662,7 +2707,8 @@
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           "version": "1.0.1",
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-          "dev": true
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@@ -2674,6 +2720,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2713,12 +2760,12 @@
           "optional": true
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-          "version": "1.2.7",
+          "version": "1.2.8",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "deep-extend": "^0.5.1",
+            "deep-extend": "^0.6.0",
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             "minimist": "^1.2.0",
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@@ -2748,18 +2795,19 @@
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-          "version": "2.6.2",
+          "version": "2.6.3",
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           "dev": true,
           "optional": true,
           "requires": {
-            "glob": "^7.0.5"
+            "glob": "^7.1.3"
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-          "version": "5.1.1",
+          "version": "5.1.2",
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@@ -2774,7 +2822,7 @@
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-          "version": "5.5.0",
+          "version": "5.6.0",
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@@ -2795,6 +2843,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2814,6 +2863,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -2825,17 +2875,17 @@
           "optional": true
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-          "version": "4.4.1",
+          "version": "4.4.8",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "chownr": "^1.0.1",
+            "chownr": "^1.1.1",
             "fs-minipass": "^1.2.5",
-            "minipass": "^2.2.4",
-            "minizlib": "^1.1.0",
+            "minipass": "^2.3.4",
+            "minizlib": "^1.1.1",
             "mkdirp": "^0.5.0",
-            "safe-buffer": "^5.1.1",
+            "safe-buffer": "^5.1.2",
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@@ -2846,23 +2896,25 @@
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-          "version": "1.1.2",
+          "version": "1.1.3",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "string-width": "^1.0.2"
+            "string-width": "^1.0.2 || 2"
           }
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         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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-          "version": "3.0.2",
+          "version": "3.0.3",
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@@ -2900,10 +2952,13 @@
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-      "resolved": "http://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
-      "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=",
-      "dev": true
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
+      "integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
+      "dev": true,
+      "requires": {
+        "pump": "^3.0.0"
+      }
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     "get-value": {
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@@ -3186,9 +3241,9 @@
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