init board votes to abstain, fix permissions.
hotfix: send agenda to guests
add a field to proposal model - enable/disable board vote registration

handle state in html/js client side,  added code to handle display and registration of
board vote according to this field (register_board_vote)
cleanup
patch to release 7 fix the participants list in meeting protocol
add community option - email_invitees
Merge branch 'release_7' + move procedures, tasks pages to issues app

Conflicts:
	src/communities/models.py
	src/issues/models.py
	src/issues/urls.py
	src/issues/views.py
procedures page with haystack search and tags