Fix jshint errors

Gruntfile.js

@@ -91,7 +91,7 @@ module.exports = function(grunt) {
         trailing : true,
         curly : true,
         es3 : true,
-        globals : {'$':true, 'jQuery' : true, 'pskl':true, 'Events':true, 'Constants':true, 'console' : true, 'module':true, 'require':true}
+        globals : {'$':true, 'jQuery' : true, 'pskl':true, 'Events':true, 'Constants':true, 'console' : true, 'module':true, 'require':true, 'Q':true}
       },
       files: [
         'Gruntfile.js',

build/closure/piskel-closure-externs.js

@@ -15,4 +15,5 @@ var pskl;
 var define;
 var jQuery;
 var getComputedStyle;
-var URL;
+var URL;
+var Q;

src/js/model/frame/AsyncCachedFrameProcessor.js

@@ -52,5 +52,5 @@
     cache[secondCacheKey] = processedFrame;
     cache[firstCacheKey] = processedFrame;
     deferred.resolve(processedFrame);
-  }
+  };
 })();

src/js/service/CurrentColorsService.js

@@ -63,9 +63,9 @@
         Object.keys(result).forEach(function (color) {
           colors[color] = true;
         });
-      })
+      });
       this.updateCurrentColorsReady_(colors);
-    }.bind(this))
+    }.bind(this));
   };
 
   ns.CurrentColorsService.prototype.updateCurrentColorsReady_ = function (colors) {