Added Average module

start to average module (#249)

* start to average module

* completed average module

* added average module, version bump

Fix for replaceImage on Macs

v1.4.1

bugfix version bump (#248)

Redesigned default HTML UI

And new HTML UI for Crop module

Removed jQuery

v1.3.3

uses jquery if available in replace (#240)

v1.3.0

Update PixelManipulation.js (#236)

Spinner and progress system, many improvements

@ccpandhare @tech4GT also released on npm at this version number

Initial release

Merge pull request #63 from ccpandhare/development

Removed Global Variables, Added a Test to check this