language fix on group request form

remove static text from invitation form
Merge pull request #755 from loomio/language-fix

Language fixes for new group flow
fix bug for groups/invitations#create (when not using js)

support invitation cancellation and invitation not found

cancellation, refollow invitaitions working

feature complete invitations system
Remove validation for inviting people on group setup

fixes #740
Merge pull request #749 from loomio/bug/skip-invites

Remove validation for invites
Improve invitations system

- support invitation cancellation and invitation not found
- fix bug for groups/invitations#create (when not using js)

Conflicts:
	app/controllers/groups/invitations_controller.rb
Merge branch 'bug/cancel-rather-than-delete-invitations' of github.com:loomio/loomio into bug/cancel-rather-than-delete-invitations

Conflicts:
	app/controllers/groups/invitations_controller.rb
fix da specs
Merge pull request #767 from loomio/bug/cancel-rather-than-delete-invitations

fix problem where cancelling invitations deletes them
migrate older approved group_setups to invitations system
Merge pull request #768 from loomio/bug/old-group-setup-links-need-migration-to-new-invitations-system

Bug/old group setup links need migration to new invitations system
Populate GroupRequest.approved_by. Fixes #757
Delay invitation emails
Merge pull request #769 from loomio/bug/various-fixes

Bug/various fixes
Merge branch 'master' of github.com:loomio/loomio into refactor/css-overhaul-groups

* 'master' of github.com:loomio/loomio:
  Delay invitation emails
  Populate GroupRequest.approved_by. Fixes #757
  migrate older approved group_setups to invitations system
  fix da specs
  Improve invitations system
  Remove validation for inviting people on group setup
  fix bug for groups/invitations#create (when not using js)
  language fix on group request form

Conflicts:
	app/views/groups/invitations/index.html.haml