fixes #741 by passing task to delayed_job
prevent group requests from being deleted if there is a group associated
Merge pull request #776 from loomio/bug/remove-group-requests-destroy-from-active-admin

prevent group requests from being deleted if there is a group associated
Add extra cautious save to GroupRequest#approve!
Merge pull request #770 from loomio/bug/discussion-destroy-is-timing-out

fixes #741 by passing task to delayed_job
Add more error catching to debug funky group request stuff
Merge branch 'master' of github.com:loomio/loomio
Fix failing specs
Acts as state machine, you little devil... :imp:
Add group to group request admin page
Remove piwik until we've set it up on our own server
Merge branch 'master' of github.com:loomio/loomio into request-membership
write validations with specs for membership_request, refactor create