Prevent: Error: Uncaught TypeError

Prevent: Error: Uncaught TypeError: object is not a function
Merge pull request #630 from dismorfo/master

Prevent: Error: Uncaught TypeError
minify all images
Merge pull request #639 from TheDigitalOrchard/master

Optimize all images
Create jquery.colorbox-bn.js

Added Bengali Translation
Merge pull request #641 from arkaindas/patch-1

Create jquery.colorbox-bn.js
When opening, append Colorbox to the DOM if it was detached for whatever reason.  Fixes #645.