[FIX] Cache map of rooms per user

- Closes #1405
[FIX] Dummy conf for tests created in the past
[IMP] HTTP API - future events flag

- Tell whether there are future events or not
- Some PEP8
- Closes #1406
[IMP] Add modification date contrib to MARCXML

- Closes #1407
Merge branch 'v1.1'

Conflicts:
	indico/MaKaC/webinterface/rh/roomBooking.py
PEP8 fixes
[VER] Version Bump
[FIX] Download URL
[FIX] TT overlap sessions in detailed mode

- Closes #1412
[FIX] If not toDate do not check if moreevents

- Closes #1413
[IMP] Added icon-close to announcement header
[REF] Renamed variable
[FIX] Notify Vidyo Room deleted

- Closes #1419
[FIX] TT session popup view contributions scroll

- Closes #1414
[FIX] Recording & Webcast Request show capable

- Closes #1418
[FIX] Participant menu disapear in french

- Closes #1390
[MIN] Tpl cosmetics
[REF] Cleaned imports in wcomponents
[MIN] Changed hash method to crc32 for announc.
[FIX] Missing IP in AW for HTTP API