Improved memory handling with image processing + JSHint compatibility…

… updates.

Minor bugfix release.

Use scope.evalAsync to make sure the digest cycle is triggered.

Trigger aborts of unstarted file uploads in the core plugin. Closes b…

…lueimp#2751

Added options limitMultiFileUploadSize and limitMultiFileUploadSizeOv…

…erhead based on @ottens pull request blueimp#2740.

Updated dependencies.

Distribute only relevant files via bower. Closes blueimp#2726

Added imageQuality, imageType and imageForceResize options.

File size validation performance improvements. Thanks @dougdomeny

Updated dependencies and installed JSHint grunt task.