diff --git a/package-lock.json b/package-lock.json
index e2d559f..260b463 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1131,6 +1131,7 @@
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       "dev": true,
+      "optional": true,
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@@ -2405,7 +2406,8 @@
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       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -2820,7 +2822,8 @@
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       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
-      "dev": true
+      "dev": true,
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@@ -3768,7 +3771,8 @@
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           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3789,12 +3793,14 @@
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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,
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@@ -3809,17 +3815,20 @@
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           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3936,7 +3945,8 @@
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           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3948,6 +3958,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -3962,6 +3973,7 @@
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           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -3969,12 +3981,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
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           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -3993,6 +4007,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4073,7 +4088,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4085,6 +4101,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4170,7 +4187,8 @@
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           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4206,6 +4224,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4225,6 +4244,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -4268,12 +4288,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
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@@ -4282,6 +4304,7 @@
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       "dev": true,
+      "optional": true,
       "requires": {
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@@ -4294,6 +4317,7 @@
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       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
+      "optional": true,
       "requires": {
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         "console-control-strings": "^1.0.0",
@@ -4331,7 +4355,8 @@
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       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -4539,7 +4564,8 @@
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       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5311,7 +5337,8 @@
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       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5953,6 +5980,7 @@
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       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
+      "optional": true,
       "requires": {
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@@ -5965,7 +5993,8 @@
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           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6231,7 +6260,8 @@
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       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -7001,6 +7031,7 @@
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       "dev": true,
+      "optional": true,
       "requires": {
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@@ -8049,6 +8080,7 @@
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       "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
       "dev": true,
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@@ -8060,6 +8092,7 @@
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           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
           "dev": true,
+          "optional": true,
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@@ -8070,7 +8103,8 @@
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           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -8079,6 +8113,7 @@
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       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
+      "optional": true,
       "requires": {
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         "read-pkg": "^1.0.0"
@@ -8089,6 +8124,7 @@
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           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
+          "optional": true,
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@@ -8099,6 +8135,7 @@
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           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
           "dev": true,
+          "optional": true,
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@@ -9480,6 +9517,7 @@
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       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
+      "optional": true,
       "requires": {
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       }
@@ -10905,9 +10943,9 @@
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-      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
-      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
+      "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg==",
       "dev": true
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@@ -10937,6 +10975,7 @@
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       "dev": true,
+      "optional": true,
       "requires": {
         "string-width": "^1.0.2 || 2"
       }