diff --git a/package-lock.json b/package-lock.json
index ef4be0b..3edd454 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1571,6 +1571,7 @@
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       "dev": true,
+      "optional": true,
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         "readable-stream": "^2.0.6"
@@ -2785,7 +2786,8 @@
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       "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-      "dev": true
+      "dev": true,
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@@ -3174,7 +3176,8 @@
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       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -3485,26 +3488,6 @@
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       }
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-      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-3.3.0.tgz",
-      "integrity": "sha512-2qbxE7ek3YxPJ1ML6V+satHkzHpJQKWkRHmRx6mfAoW59yP8YH8BFplbegSP+u2hBd6B6KCOpvJQ3dZAP+hkpg==",
-      "dev": true,
-      "requires": {
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-          "integrity": "sha512-2wsvQ+4GwBvLPLWsNfLCDYGsW6xb7aeC6utq2Qh0PFwgEy7K7dsma9Jsmb2zSQj7GvYAyUGSntLtsv++GmgL1A==",
-          "dev": true
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       "resolved": "https://registry.npmjs.org/ent/-/ent-2.2.0.tgz",
@@ -3610,9 +3593,9 @@
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-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.0.7.tgz",
-      "integrity": "sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.1.1.tgz",
+      "integrity": "sha512-qV5ZC0h7jYIAOhArFJgSfdyz6rALJyb270714o7ZtNnw2WSJ+eexhKtE0O8LYPRsHZHf2osHKZBxGPvm3kPkCA==",
       "dev": true,
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@@ -4203,7 +4186,8 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4224,12 +4208,14 @@
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           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4244,17 +4230,20 @@
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           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": 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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@@ -4371,7 +4360,8 @@
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           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4383,6 +4373,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
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           }
@@ -4397,6 +4388,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4404,12 +4396,14 @@
         "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,
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@@ -4428,6 +4422,7 @@
           "version": "0.5.1",
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           "dev": true,
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@@ -4508,7 +4503,8 @@
         "number-is-nan": {
           "version": "1.0.1",
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-          "dev": true
+          "dev": true,
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@@ -4520,6 +4516,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -4605,7 +4602,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "2.1.2",
@@ -4641,6 +4639,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -4660,6 +4659,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -4703,12 +4703,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4717,6 +4719,7 @@
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       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
       "dev": true,
+      "optional": true,
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@@ -4734,6 +4737,7 @@
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       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
+      "optional": true,
       "requires": {
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         "console-control-strings": "^1.0.0",
@@ -4771,7 +4775,8 @@
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       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5392,7 +5397,8 @@
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       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -6107,7 +6113,8 @@
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       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -6785,6 +6792,7 @@
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       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
+      "optional": true,
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@@ -6797,7 +6805,8 @@
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           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
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+          "optional": true
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@@ -7087,7 +7096,8 @@
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       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -7745,6 +7755,7 @@
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       "dev": true,
+      "optional": true,
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@@ -8839,6 +8850,7 @@
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       "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
       "dev": true,
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       "requires": {
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@@ -8850,6 +8862,7 @@
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           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
           "dev": true,
+          "optional": true,
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@@ -8860,7 +8873,8 @@
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           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
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@@ -8869,6 +8883,7 @@
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       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
+      "optional": true,
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         "read-pkg": "^1.0.0"
@@ -8879,6 +8894,7 @@
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           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
+          "optional": true,
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@@ -8889,6 +8905,7 @@
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           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
           "dev": true,
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@@ -10253,6 +10270,7 @@
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       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
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@@ -11590,6 +11608,7 @@
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       "dev": true,
+      "optional": true,
       "requires": {
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       }