Add coffeelint support

Author: mnquintana

.coffeelintignore

@@ -0,0 +1 @@
+spec/fixtures

.gitignore

@@ -0,0 +1 @@
+node_modules

coffeelint.json

@@ -0,0 +1,37 @@
+{
+  "max_line_length": {
+    "level": "ignore"
+  },
+  "no_empty_param_list": {
+    "level": "error"
+  },
+  "arrow_spacing": {
+    "level": "error"
+  },
+  "no_interpolation_in_single_quotes": {
+    "level": "error"
+  },
+  "no_debugger": {
+    "level": "error"
+  },
+  "prefer_english_operator": {
+    "level": "error"
+  },
+  "colon_assignment_spacing": {
+    "spacing": {
+      "left": 0,
+      "right": 1
+    },
+    "level": "error"
+  },
+  "braces_spacing": {
+    "spaces": 0,
+    "level": "error"
+  },
+  "spacing_after_comma": {
+    "level": "error"
+  },
+  "no_stand_alone_at": {
+    "level": "error"
+  }
+}

package.json

@@ -7,5 +7,8 @@
     "node": "*"
   },
   "license": "MIT",
-  "repository": "https://github.com/atom/language-ruby"
+  "repository": "https://github.com/atom/language-ruby",
+  "devDependencies": {
+    "coffeelint": "^1.10.1"
+  }
 }