Merge pull request #25 from sunesimonsen/ssimonsen/supports-color-6.1.0

Upgrade supports-color (Major)

Author: sunesimonsen

Diff for: .travis.yml

@@ -1,5 +1,9 @@
 language: node_js
 node_js:
-  - "0.10"
-  - "0.12"
+  - "6"
+  - "7"
+  - "8.4.0"
+  - "9"
+  - "10"
+
 script: "npm run-script travis"

Diff for: package.json

@@ -33,7 +33,7 @@
   "dependencies": {
     "ansi-styles": "2.0.0",
     "color-diff": "0.1.7",
-    "supports-color": "1.2.0"
+    "supports-color": "6.1.0"
   },
   "license": "MIT"
 }