Reports
+++++++
- Fixed report generation to not do network requests (https://launchpad.net/bugs/1185418).
- Fixed ratio of school logo in reports
- Fixed ratio of school logo.
- Fixed rendering of "&" in headers.
Bugfixes
++++++++
- Warn about unsaved changes when leaving gradebook (https://launchpad.net/bugs/907999)
Language
++++++++
- Replaced Filter by... labels
- Updated Italian, Greek, Portuguese, and other translations.