Returns a day in the range 1 - days_of_month instead of 0 - (days_of_month - 1)
Remove indeterminism in preferences tests
Fix script backup test and remove non determinism from it
Update copyright years
Merge branch 'master' into oauthlib-support

Conflicts:
	yithlibraryserver/user/tests/test_views.py
Remove the authorized_apps attribute from test users
Remove unnecesary setup code for these tests
Get the app's users with the authorized_apps collection