Add failing test for password reset

See #47
Update devise to 3.1.0.rc2

Was an attempt at fixing #47, but it didn't help. Still a good thing to do.
remove old rails4 hack from devise initializer

Resolves #47
Add a DEVISE_SECRET to travis.yml for testing
Merge branch 'refs/heads/master' into fix-password-reset

Conflicts:
	Gemfile.lock
Merge pull request #74 from seedpod/fix-password-reset

Fix password reset