[FIX] Infinite recursion in poster sessions
[FIX] Use correct slot schedule for new poster sessions
[FIX] Unlink categs from avatars on delete
[FIX] Download URL
[FIX] Migration script fails if no Vidyo plugin
[FIX] Escaping titles in MARCXML output
[FIX] Added --run-from to migrate.py
[FIX] Escaping titles in MARCXML output
[FIX] Code formatting in d68caa2d
Merge branch 'v1.0' into v1.1

Conflicts:
	bin/migration/migrate.py
[FIX] Merging issues
[FIX] Numbering (once again) in Pension Fund style
[FIX] Fixed wrong English word for organisers
[FIX] Item order Administrative style

- Closes #1303
[FIX] Timetable legend showing all slots solved
[FIX] Invite participant URL mandatory

- Closes #1299
[FIX] HTTP API requests produce https links
[FIX] OAUth authorized list display

- Closes #1282
[FIX] Save minutes button iPad

- Refactor of the onChange event in the text
- Closes #1296
FIX] Timetable material popup IE

- Closes #1301