Add jQuery JSCS style checking

Grunt is bumped due to a bad peerDependency in the grunt plugin

Gruntfile.js

@@ -41,6 +41,45 @@ module.exports = function(grunt) {
                 files: "<%= jshint.flot.src %>",
                 tasks: ["jshint:flot"]
             }
+        },
+        jscs: {
+            options: {
+                "requireCurlyBraces": [ "if", "else", "for", "while", "do" ],
+                "requireSpaceAfterKeywords": [ "if", "else", "for", "while", "do", "switch", "return" ],
+                "requireSpacesInFunctionExpression": {
+                    "beforeOpeningCurlyBrace": true
+                },
+                "disallowSpacesInFunctionExpression": {
+                    "beforeOpeningRoundBrace": true
+                },
+                "requireMultipleVarDecl": true,
+                "requireSpacesInsideObjectBrackets": "all", // Different from jQuery preset
+                "disallowSpacesInsideArrayBrackets": true, // Different from jQuery preset
+                "disallowLeftStickedOperators": [ "?", "-", "/", "*", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<=" ],
+                "disallowRightStickedOperators": [ "?", "/", "*", ":", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
+                "requireSpaceBeforeBinaryOperators": ["+", "-", "/", "*", "=", "==", "===", "!=", "!=="],
+                "disallowSpaceAfterPrefixUnaryOperators": ["++", "--", "+", "-"],
+                "disallowSpaceBeforePostfixUnaryOperators": ["++", "--"],
+                "requireRightStickedOperators": [ "!" ],
+                "requireLeftStickedOperators": [ "," ],
+                "disallowKeywords": [ "with" ],
+                "disallowMultipleLineBreaks": true,
+                "disallowKeywordsOnNewLine": [ "else" ],
+                "requireLineFeedAtFileEnd": true,
+                "disallowSpaceAfterObjectKeys": true,
+                "validateJSDoc": {
+                    "checkParamNames": true,
+                    "checkRedundantParams": true,
+                    "requireParamTypes": true
+                },
+                "validateQuoteMarks": "\"",
+                reporter: "checkstyle",
+                reporterOutput: "jscs.xml"
+            },
+            flot: {
+                src: "<%= jshint.flot.src %>"
+            }
+
         }
     });
 
@@ -48,6 +87,7 @@ module.exports = function(grunt) {
     grunt.loadNpmTasks("grunt-contrib-uglify");
     grunt.loadNpmTasks("grunt-contrib-jshint");
     grunt.loadNpmTasks("grunt-contrib-watch");
+    grunt.loadNpmTasks("grunt-jscs-checker");
 
     // Default task.
     grunt.registerTask("default", ["jshint", "uglify"]);

package.json

@@ -36,10 +36,11 @@
     "url": "https://github.com/flot/flot/issues"
   },
   "devDependencies": {
-    "grunt": "~0.4.1",
+    "grunt": "~0.4.2",
     "grunt-contrib-jshint": "~0.6.4",
     "grunt-contrib-uglify": "~0.2.4",
-    "grunt-contrib-watch": "~0.5.3"
+    "grunt-contrib-watch": "~0.5.3",
+    "grunt-jscs-checker": "~0.3.2"
   },
   "maintainers": [
     {