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
add setting HAYSTACK_SIGNAL_PROCESSOR
new assignments page, uncomplete
Refactored homepage test
Upgrading to pip 1.5.4, added paul to QA
cleanup, added TODOs :-)
Fixing a strange historical migration
Refactored and added tests for homepage and communty home
Added Create meeting test
Merge remote-tracking branch 'origin/master'