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
  - ![accountedit](https://f.cloud.github.com/assets/456952/2274164/00c96600-9f19-11e3-9755-5e62d9f9338b.png)