First pass at enabeling collection level locking.
Merge https://github.com/MorganDawe/islandora_object_lock into 7.x
Removed an non required table theme funciton.
Updated compute_duration to account for locking collections.
Updated vertical tab text, implemented a new permission for accessing lock duration and renamed a form field.
Merged in tip of master, and corrected some coding standards.
Updated collection level locks to be stored in a table instead of in drupal vars.
Added the install file to set up the table of collection level locks on module install.
Resolved merge conflicts.
Fixed up some notes on github, but still not sure if we are going to make islandora_solution_pack_collection a strong dependancy or not.
Moved collection level locking logic into its own submodule, to remote dependencies of islandora solution pack collection from islandora object lock.
Removed DSM statements.
Updated db logic, and addressed notes in code review.
Merge pull request #5 from MorganDawe/7.x

Collection level object locking.