Feature/edit content fields#1592

Fixed #1592 to better align and html fields. Also, changed styling for tabs when tabgroups is enabled.

![screen shot 2014-09-02 at 13 10 20](https://cloud.githubusercontent.com/assets/5597447/4117577/0932aaa4-3294-11e4-9cf9-2d869129dcfc.png)
![screen shot 2014-09-02 at 13 09 45](https://cloud.githubusercontent.com/assets/5597447/4117578/0c129c2a-3294-11e4-983d-df66362c0cc0.png)