If an entity type has no image fields, a warning message will be displayed. Added description for entity IDs field. Removed unnecessary settings from the context on save. Added special behavior for file entity type.

Fixed error when saving context without having an entity type selected. Removed Media support because files can be uploaded at /admin/content/files. Used #states to mark some form elements as required if necessary.

Removed jquery_update dependency and added the jQuery Backstretch plugin into Backstretch module so that we can modify the javscript to make it compatible with jQuery 1.4.4.

Changing name of waypoints to 'scroller' and making it much more automatic - no more need to alter theme. Cleaned up a few docs along the way