[FIX] Missing json encoding
[FIX] Previous fix was wrong
[FIX] Reindex email when set secondary email

- Closes #1373
[FIX] 'Create New Template' button missing

fixes #1355
[IMP] Search only active users in userList.py

- fixes #1369
[FIX] Misleading user guide info

 * Groups cannot be added as participants
[FIX] Select submitters evaluation form
[FIX] Book of Abstracts setup sort by
[FIX] 32bit checks
Merge branch 'v1.1'

Conflicts:
	indico/MaKaC/services/implementation/user.py
	indico/MaKaC/webinterface/pages/conferences.py
	indico/MaKaC/webinterface/tpls/ConfModifEvaluationResultsSubmitters.tpl