added missing perl modules.
Fixed bug when creating new problem set.
Fixed bug when creating new problem set.
dancer wouldn't run right without refinding ::Constants::WEBWORK_DIRECTORY
Removed WeBWorK::Debug to get to work on production server.
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into develop
Changes to get YAML session working
Changes to check YAML session working.
Conflicts:
	webwork3/lib/Routes/Authentication.pm
Fixed a bug when checking permissions.
Bug when setting the debug log file.
Fixed a bug in which problems weren’t getting property set in the problem_user database.
comment wasn’t closed.
Bug when setting the debug log file.
Changed the session type in the development distribution file.
Fixed Issue #282
Fixed Issue #281
Fixed Issue #271 and added some enhancements to the Manage Problem Sets
Fixed Issue #287 and bug in which problems could not be added to a set.
Merge pull request #288 from pstaabp/develop

Updates/bug fixes to Homework Manager.