Update docs, move to v0.7.0

Thank you to @jamespegg for adding the gallery/next-previous feature. With that we will move to v0.7.0.

Completing issues #44 and #45

* Fixed Firefox Bug

* Downgraded jQuery to 1.9.1 for testing and the doc
* Removed an old file

Updating to version 0.5

Updating the missing part from the previous commit

Closses issues #12 and #13, updating to v0.4

* Issue #12 - Update to bootstrap v2.2.1
* Issue #13 - Code cleanup: Changed code structure and fixed several bugs

Fixing bugs and updating to a new bootstrap version. Version 0.3

* Fixed Bug #5 - Lightbox didn't position correctly in Google Chrome
* Completed Issue #7 - Updating to boostrap v2.1.1

Fixing issue with Chrome not centering correctly

Fixing auto-centering of lightbox