diff --git a/package-lock.json b/package-lock.json
index e5b7ec2..ebbc27b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1526,7 +1526,7 @@
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+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -1784,7 +1784,7 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
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@@ -3080,18 +3080,32 @@
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-      "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
       "dev": true,
       "requires": {
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-        "brorand": "^1.0.1",
+        "bn.js": "^4.11.9",
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-        "inherits": "^2.0.1",
-        "minimalistic-assert": "^1.0.0",
-        "minimalistic-crypto-utils": "^1.0.0"
+        "hmac-drbg": "^1.0.1",
+        "inherits": "^2.0.4",
+        "minimalistic-assert": "^1.0.1",
+        "minimalistic-crypto-utils": "^1.0.1"
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+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==",
+          "dev": true
+        },
+        "inherits": {
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+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
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+        }
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@@ -3865,7 +3879,8 @@
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@@ -3886,12 +3901,14 @@
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+          "dev": true,
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@@ -3906,17 +3923,20 @@
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@@ -4033,7 +4053,8 @@
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@@ -4045,6 +4066,7 @@
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@@ -4059,6 +4081,7 @@
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@@ -4066,12 +4089,14 @@
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@@ -4090,6 +4115,7 @@
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@@ -4170,7 +4196,8 @@
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@@ -4182,6 +4209,7 @@
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@@ -4267,7 +4295,8 @@
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@@ -4303,6 +4332,7 @@
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@@ -4322,6 +4352,7 @@
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@@ -4365,12 +4396,14 @@
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+          "dev": true,
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@@ -4427,7 +4461,8 @@
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-      "dev": true
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@@ -5313,7 +5348,8 @@
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-      "dev": true
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@@ -5579,7 +5615,7 @@
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-      "resolved": "http://registry.npmjs.org/jasmine-core/-/jasmine-core-2.99.1.tgz",
+      "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-2.99.1.tgz",
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@@ -5715,13 +5751,13 @@
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-          "resolved": "http://registry.npmjs.org/core-js/-/core-js-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.3.0.tgz",
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-          "resolved": "http://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
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@@ -5733,7 +5769,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
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@@ -5947,6 +5983,7 @@
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       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
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@@ -5959,7 +5996,8 @@
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-      "dev": true
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@@ -6357,7 +6396,7 @@
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-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
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@@ -7385,7 +7424,7 @@
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -7413,7 +7452,7 @@
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-          "resolved": "http://registry.npmjs.org/globby/-/globby-5.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/globby/-/globby-5.0.0.tgz",
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@@ -7427,13 +7466,13 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -7669,6 +7709,7 @@
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@@ -7708,6 +7752,7 @@
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@@ -7716,7 +7761,7 @@
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-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -7823,7 +7868,7 @@
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-          "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
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@@ -8992,7 +9037,7 @@
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-      "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
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@@ -9004,6 +9049,7 @@
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       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
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@@ -9512,7 +9558,7 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
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@@ -9797,7 +9843,7 @@
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-          "resolved": "http://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
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