add eslint and editorconfig

.editorconfig

@@ -0,0 +1,15 @@
+; EditorConfig file: http://EditorConfig.org
+; Install the "EditorConfig" plugin into Sublime Text to use
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+[package.json]
+indent_size = 2

.eslintrc

@@ -0,0 +1,81 @@
+{
+    "env": {
+        "node": true,
+        "browser": true,
+        "es6": true
+    },
+    "parserOptions": {
+        "ecmaVersion": 6,
+        "sourceType": "module"
+    },
+    "rules": {
+        "array-bracket-spacing": [2, "never", {"singleValue": false}],
+        "arrow-spacing": [2, {"before": true, "after": true}],
+        "brace-style": 2,
+        "camelcase": [2, {"properties": "never"}],
+        "comma-style": [2, "last"],
+        "complexity": [2, 10],
+        "constructor-super": 2,
+        "curly": [2, "all"],
+        "eol-last": 2,
+        "eqeqeq": 2,
+        "guard-for-in": 2,
+        "generator-star-spacing": [2, {"before": false, "after": true}],
+        "indent": [2, 4, {"SwitchCase": 1}],
+        "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
+        "keyword-spacing": [2, {
+            "overrides": {
+                "catch": {"after": true},
+                "do": {"after": true},
+                "else": {"after": true},
+                "for": {"after": true},
+                "if": {"after": true},
+                "return": {"after": true},
+                "switch": {"after": true},
+                "try": {"after": true},
+                "while": {"after": true}
+            }
+        }],
+        "linebreak-style": [2, "unix"],
+        "max-depth": [2, 3],
+        "max-len": [2, 140],
+        "max-params": [1, 4],
+        "max-statements": [2, 20],
+        "new-cap": [2, { "capIsNewExceptions": ["Q"] }],
+        "no-eval": 2,
+        "no-bitwise": 2,
+        "no-caller": 2,
+        "no-class-assign": 2,
+        "no-const-assign": 2,
+        "no-dupe-class-members": 2,
+        "no-empty": 2,
+        "no-mixed-spaces-and-tabs": 2,
+        "no-multi-spaces": 2,
+        "no-multi-str": 2,
+        "no-new": 2,
+        "no-this-before-super": 2,
+        "no-trailing-spaces": 2,
+        "no-undef": 2,
+        "no-unused-vars": 2,
+        "no-use-before-define": [2, "nofunc"],
+        "no-var": 0,
+        "no-with": 2,
+        "object-shorthand": 0,
+        "prefer-arrow-callback ": 0,
+        "prefer-const": 0,
+        "prefer-spread": 0,
+        "prefer-reflect": 0,
+        "prefer-template": 0,
+        "quotes": [2, "single", "avoid-escape"],
+        "require-yield": 0,
+        "semi": 2,
+        "space-before-function-paren": [2, "never"],
+        "space-unary-ops": [2, {"words": false, "nonwords": false}],
+        "space-infix-ops": 2,
+        "strict": [2, "global"],
+        "wrap-iife": 2
+    },
+    "globals": {
+        "chrome": true
+    }
+}

.gitignore

@@ -1 +1,2 @@
 node_modules
+.tern-project

package.json

@@ -11,5 +11,8 @@
   "dependencies": {
     "body-parser": "^1.16.1",
     "express": "^4.14.1"
+  },
+  "devDependencies": {
+    "eslint": "^3.15.0"
   }
 }