Revert "feat(auth) add confirm password to signup and settings"

This reverts commit 0f6ef0a44a76348c839391615ec849b2810ff680.
Need to fix something in the html files.
feat(auth) add confirm password to signup and settings

confirm password powered by directive: https://github.com/wongatech/angular-confirm-field
+ adding for attribute to labels and ids to associated elements
+ fixing invalid password error in settings HTML to ref pwd.old. instead of form.password...
  (Jade was ok)

take note of new dependency in test/fixtures/bower.json (re-run bower install on current clones...)