fix(package): update micromatch to version 3.1.8 (#134)

Fixes downstream vulnerability: https://snyk.io/vuln/npm:braces:20180219

Author: JaKXz

package.json

@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "arrify": "^1.0.1",
-    "micromatch": "^2.3.0",
+    "micromatch": "^3.1.8",
     "object-assign": "^4.1.0",
     "ramda": "^0.25.0"
   },