Fixed classes so padding would be correct on party tab

The bootstrap classes (`.container-fluid`) for the party tab, when not in a party yet, were put in the wrong spots and it was causing padding issues. By shuffling around where the container-fluid class lives, the issue is fixed.

The only change to `create-group.jade` file was removing the `.container-fluid` and `.row` classes and removing the extra tabs.

![padding-issue](https://cloud.githubusercontent.com/assets/2916945/4682795/d9d935ec-5620-11e4-9f0c-728e149d7f89.jpg)

**Note:** since  `.container-fluid` has padding, and the h2 tags have a `margin-top: 20px` style, it may preferable to set an inline style on the `.container-fluid` or `h2` elements so that they aren't pushed down as far as they are now. Do you have a preference?