diff --git a/package-lock.json b/package-lock.json
index c7e142c..ec2fe62 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -950,7 +950,8 @@
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+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "optional": true
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@@ -1017,21 +1018,6 @@
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-      "resolved": "https://registry.npmjs.org/acorn5-object-spread/-/acorn5-object-spread-4.0.0.tgz",
-      "integrity": "sha1-1XWAge7ZcSGrC+R+Mcqu8qo5lpc=",
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-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
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@@ -1185,6 +1171,7 @@
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       "dev": true,
+      "optional": true,
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@@ -2739,7 +2726,8 @@
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       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -3238,7 +3226,8 @@
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       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -4316,7 +4305,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -4334,11 +4324,13 @@
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         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "bundled": true,
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@@ -4351,15 +4343,18 @@
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+          "bundled": true,
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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-          "bundled": true
+          "bundled": true,
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@@ -4462,7 +4457,8 @@
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-          "bundled": true
+          "bundled": true,
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@@ -4472,6 +4468,7 @@
         "is-fullwidth-code-point": {
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           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -4484,17 +4481,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
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         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "bundled": true,
+          "optional": true,
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@@ -4511,6 +4511,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -4583,7 +4584,8 @@
         },
         "number-is-nan": {
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-          "bundled": true
+          "bundled": true,
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@@ -4593,6 +4595,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
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@@ -4668,7 +4671,8 @@
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+          "bundled": true,
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@@ -4698,6 +4702,7 @@
         "string-width": {
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           "bundled": true,
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           "requires": {
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@@ -4715,6 +4720,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4753,11 +4759,13 @@
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         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -4766,6 +4774,7 @@
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       "dev": true,
+      "optional": true,
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@@ -4783,6 +4792,7 @@
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       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
+      "optional": true,
       "requires": {
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@@ -4829,7 +4839,8 @@
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       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5049,7 +5060,8 @@
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       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5884,7 +5896,8 @@
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       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -6292,9 +6305,9 @@
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-      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
-      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.2.tgz",
+      "integrity": "sha512-g1MWMLBiz8FKi1e4w0UyVL3w+iJceWAFBAaBnnGKOpNa5f8TLktkbre1+s6oICydWAm+HRUGTmI+//xv2hvXYA==",
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@@ -6541,6 +6554,7 @@
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       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
+      "optional": true,
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@@ -6553,7 +6567,8 @@
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           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
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+          "optional": true
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@@ -6827,7 +6842,8 @@
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       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -7802,6 +7818,7 @@
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       "dev": true,
+      "optional": true,
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@@ -8941,6 +8958,7 @@
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       "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
       "dev": true,
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@@ -8952,6 +8970,7 @@
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           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
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@@ -8962,7 +8981,8 @@
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-          "dev": true
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@@ -8971,6 +8991,7 @@
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       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
+      "optional": true,
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@@ -8981,6 +9002,7 @@
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           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
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@@ -8991,6 +9013,7 @@
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           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
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@@ -9672,13 +9695,13 @@
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-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
+          "version": "5.7.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+          "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
         },
         "buble": {
           "version": "github:pemrouz/buble#4e639aeeb64712ac95dc30a52750d1ee4432c9c8",
-          "from": "github:pemrouz/buble",
+          "from": "github:pemrouz/buble#4e639aeeb64712ac95dc30a52750d1ee4432c9c8",
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@@ -9688,6 +9711,16 @@
             "minimist": "^1.2.0",
             "os-homedir": "^1.0.1",
             "vlq": "^0.2.2"
+          },
+          "dependencies": {
+            "acorn5-object-spread": {
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+              "resolved": "https://registry.npmjs.org/acorn5-object-spread/-/acorn5-object-spread-4.0.0.tgz",
+              "integrity": "sha512-l+UYpDk+mjQoTXUHtSyUUb6glz9sSnl283LYLKvZJ7Nxpn4taIdP6DAr+8GwQ8UyY95tLWoKIr4/P7OWcw6WWw==",
+              "requires": {
+                "acorn": "^5.1.2"
+              }
+            }
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@@ -10775,6 +10808,7 @@
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       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-utf8": "^0.2.0"
       }