Added some inline documentation to the Common.php library
Added SQL file for mysql (not tested yet)
Added date-review-end to the book model data structure
Added better error handling in the main.php controller.
Updated the default internet archive module to be more generic which can hopefully be used by everyone without modifications. Includes updates to be more robust about checking for existing items at IA and how we get the metadata for an item. IMPORTANT: Added support for the 'scandate' item-level meta variable to be sent to Internet Archive and BHL.
Completed migration to mysql and updating queries to use mysql syntax where necessary.