removed export group button in list, enabled by default in detail view.
removed indavidual export buttons.
removed whitespace.
Merge branch 'develop-frontend' into feature/issue-475-export-group-contacts
pyflakes fixes
Merge branch 'develop-frontend' into feature/issue-475-export-group-contacts
Add a export_many_group_contacts contacts task, along with refactoring, testing and corresponding view changes
Compress zipped contact csv exports
Merge branch 'develop-frontend' into feature/issue-475-export-group-contacts

Conflicts:
	go/contacts/tests.py