Some trello issues.

Changed date format in issues list.
Added titles to proposal page
Changed timer to number field.
Modified member profile page for English
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/communities/static/js/participants.js
feature: let board participants vote on proposals during meetings
Small repair to participants script
Merge remote-tracking branch 'amir/master'

Conflicts:
	src/issues/templates/issues/proposal_detail_main.html
Merge with Amir
more changes to board vote

translation
bugfix for showing correctly upcoming meeting title in top of proposal page
send draft, protocol emails to meeting guests
Updated English translations.
Hide upcoming meeting location when not set.
Changed default if not set upcoming meeting date and time
Temporary margin fix
Fixed issue when showing all members from all communities