invites code started
Merge branch 'feature/new-group-wizard' of github.com:loomio/loomio into feature/new-group-wizard

* 'feature/new-group-wizard' of github.com:loomio/loomio:
  fix?
email validation added
Merge branch 'feature/new-group-wizard' of github.com:loomio/loomio into feature/new-group-wizard

* 'feature/new-group-wizard' of github.com:loomio/loomio:
  make tokens nicer