lightbox2 5.x-2.0

Changes since DRUPAL-5--1-1:

• first draft of jQuery version of lightbox2 module
• renamed lightbox2 system variable - lightbox2_plus has now become lightbox2_lite
• Updated the path to the css files as they have now moved into a "css/" directory within the lightbox2 module directory. The layout of the admin screen has been altered and javascript is loaded to enable / disable form elements depending on
  what is checked. The "lightbox2_plus" system variable has been renamed to "lightbox2_lite" and the code updated accordingly. The term "lightbox2 plus" has been removed from all user visible elements on the admin screen.
• lightbox.css and lightbox_lite.css have been moved to a "css/" subdirectory and all paths in the css files updated accordingly.
• fixed issue reported in #144513 - img_assist support
• added in patch from #80233 - allows the lightbox.js to be loaded before the images which solves the problem with speedy clickers
• added in ESC as one of the keys that will close the lightbox
• removed accesskey test
• added in patch from #155223 which allows users to close the lightbox by clicking on the background. This also fixes #149634
• corrected spacing, etc for coding standards
• fix for the pushing of the close button below the browser window for long images as reported in #150377
• Added in changes suggested in #166461, along with some fixes to the suggested code. Thanks to finley (user/50680) for the suggested code. These changes allow users to specify individual urls which should not have the lightbox2 module loaded on them.
• updated help text
• now only displaying the node link if nid is set in theme_imagefield_image_imagecache_lightbox2()
• removed call to drupal_attributes() as it is called again by the theme_imagecache function which causes it to be set to ""
• fixed issue where lightbox javascript files weren't being included on views
• added in 'package' line, from patch in #175122
• applied coding-style patch from #175122
• fixed problem with zoomed images when scrolling