Fix account page forms

#### Story ####
- https://www.pivotaltracker.com/story/show/65816846

#### Notes ####
- fixed grid styling on account edit and registration pages
- ~~added labels to form elements in account edit page (for clarity, can be removed if undesired)~~

#### Screenshots ####
- **previous** account registration page
  - ![default_accountregister](https://f.cloud.github.com/assets/456952/2274163/00c968a8-9f19-11e3-984e-97b976a62831.png)
- **current** account registration page
  - ![accountregister](https://f.cloud.github.com/assets/456952/2274161/00c86246-9f19-11e3-99d4-5e572ecda429.png)
- **previous** account edit page
  - ![default_accountedit](https://f.cloud.github.com/assets/456952/2274162/00c91420-9f19-11e3-8c63-2f30de4056ae.png)
- **current** account edit page
  - ![screen shot 2014-02-26 at 5 06 32 pm](https://f.cloud.github.com/assets/456952/2276357/5d084d32-9f32-11e3-9fe8-b9357334c36b.png)