Merge pull request #80 from ajstanley/7.x

added ability to insert zipped pages, as well as append
Changed the way current pages are passed from pre-processing to post processing handler. Callback now uses form state storage, instead of being in a hidden field.
Merge https://github.com/MorganDawe/islandora_solution_pack_book into 7.x
Updated text fields default value and removed commented code.
Corrected one coding standard issue in manage_book.
Merge pull request #81 from MorganDawe/7.x

7.x
resolved local conflicts