Removed Bolonha 1st cycle degrees from incoming mobility programmes options.
Added support for modifying a student's mobility programme.
Modified criation of incoming mobility vacancies to allow the creation of multiple vacancies at the same time
Added support for modifying a student's chosen degree.
Closes #522
Closes #525: Modified exported xls file to include username and separate each field in a different cell
Removed commented code on line 407
Fixed bug related to adding images to an announcement
Fixed forward from module webSiteManager to messaging for channel management
Bug fix: corrected the name passed to retrieve the enum properties;
adjusted the limit date
Minor change: the learning agreement is not mandatory for the specified
program types
Bumped version for release of 3.6.4
Merge branch 'release/3.6.4' into develop
Bumped version for development after release.
Minor change: corrected the label name
Created interface to display erasmus students that aren't enrolled in all shifts
Implemented automatic e-mails to erasmus students that aren't enrolled in all shifts
Bug fix: corrected the path to include the module
Fixed bug that showed master thesis as courses without enrolled shifts
Added message when email is sent successfully
Minor change: this restriction no longer applies
ThesisReadersGroup now contains all thesis participants, including the student
Merge pull request #537 from cbartol/ticket/rt#419425

Fixed the access group to the thesis file
Minor change: added missing labels