Build system that centralizes color definitions (#81)

* Initial stab at a build system in order to centralize color definitions.

* Flesh out the build system more and add contribution guidelines.

Still missing airline template.

* Templatize airline theme

build/.eslintrc.json

@@ -0,0 +1,28 @@
+{
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "rules": {
+        "no-console": [
+            "off"
+        ],
+        "indent": [
+            "error",
+            "tab"
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "never"
+        ]
+    }
+}