incomplete initial changes to make email address just login@domain.tld

This involves a number of other changes like making sure the comparison between aliases and emails still works.

Will do that by removing the @domain.tld from aliases as well.
unit tests passing
minor fixes to validation workflow
Merge remote-tracking branch 'origin/master' into feature/fixed-email-address

Conflicts:
	users/app/views/emails/_email.html.haml
Merge pull request #18 from leapcode/feature/fixed-email-address

make email address just login@domain.tld