changed label for an error message
Bugfix: back button wasn't working after downloading a file
Merge pull request #508 from cbartol/ticket/rt#416817-#416259

Changed the error message when attributing a final work to a student that already has one.
related to #500.
Also corrected a combobox that has a list of teacher's department, in the finding person menu (messaging portal).
closes #507
Merge pull request #510 from cbartol/ticket/rt#416925

Fix the unwanted behavior of the back button.
Instead of a back button, now is back link.
closes #509
Removed usages of Commons FileUpload
Bug Fix: Using correct bundle on BolonhaManagerApplication
Removing duplicated schema definition
Bug Fix: Fixed execution course name in english
Minor change:
- logic:present role now works on faces pages too
Minor change: Closes #512, tutors will now be assigned in every entry
phase
Bug fix: fixing some null pointer problems retrieving the announcements
[cms] Clarified how section ordering works
Improved card generation instructions.
Bumped version for release of 3.4.0
Merge branch 'release/3.4.0' into develop
Bumped version for development after release.
Minor changes: doing the redirect with checksum validation now; changed
the list of allowed 3rd cycle degrees to QUC
Bug fix: preventing NPE when argument is null
Bumped version for release of 3.4.1
Merge branch 'release/3.4.1' into develop