Fix Clang Warnings

When integrating this I noticed that our project's clang configuration with `-Wsemicolon-before-method-body` and  `-Wshadow` was causing some warnings to show up inside the 1Password extension. This pull request resolves those warnings.

![screen shot 2014-10-03 at 8 46 30 am](https://cloud.githubusercontent.com/assets/522951/4508282/7680945c-4b14-11e4-907f-7d15736c4a71.png)