Fixed broken email input element.
Fix some css-components error.

Fixed [#331](https://github.com/OnsenUI/OnsenUI/issues/331).
Bumped to version 1.2.1. Updated generated files.
Merge branch 'master' of https://github.com/OnsenUI/OnsenUI
Merge commit '47d90b2cd590bf0366b077cc99708d6fd5833179'
Changed <ons-tabbar-item> to <ons-tab> in default template.