Issue #73 Check to make sure Turnitin is enabled in current location.
Troubleshooting information added for WSDL errors.
EULA launcher in Turnitin Assignments no longer blocked by popups.
Fix for saving and retrieving of rubrics.
Rubrics now being saved for PP assignments.
Merge pull request #74 from danmarsden/develop

Issue #73 Check to make sure Turnitin is enabled in current location.
Merge branch 'develop' into feature/2014012408

* develop:
  Issue #73 Check to make sure Turnitin is enabled in current location.
All module check added to disclosure
EULA error moved to not show if previous submission has been made.
Incorrect encoding in a language string fixed.
Version and docs updated.
Merge branch 'feature/2014012408' into develop
Connection test added to cron event handler along with error message if submissions can't be retrieved in cron.
Offline mode provided by Androgogic
Specify assign when looking for user's grades (thanks to mattgibson)
Gradebook update removed when viewing Turnitin Assignment.
Included gradelib file in cron if it hasn't been included already.
Scope of tool tipster anti-aliasing fixed to not affect whole of Moodle
Logger class in SDK renamed to TurnitinLogger
No loger delete submissions from Turnitin in PP.