modified initial migration to suit schemas from previous data and from scratch
moved UsersController from station gem to application
collaboration places submenu is hidden if users has no read permissions over, at least, one collaboration place
created function performInputAutocomplete(), to allow input autocomplete without using addAutocompleteInputCallback()
password is always required for user creation
changed translation for filter activist.with_related_collaborations
changed HomeController to MonitoringController, changing also views, routes and translations
changed root route to activists#index
modified main menu (issue #4)
refactored some view translations
added index filter: Interested.with_talk (issue #3)
fixed permission inheritance for EventRecord child classes