Quickstart Dashboard

The Quickstart Dashboard is designed to make it even easier to develop for a WordPress.com VIP Site. It adds the following features:
- `RepoMonitor`: Watches the `git` and `svn` repos within the dashboard and notifies the user when they're out of date. The RepoMonitor also supports updating repos from the dashboard.
- `VIP Theme Helper`: Connects to WordPress.com, detects the VIP themes a user has access to and gives the ability to do an svn checkout of that theme directly into Quickstart. It can also activate VIP Themes once isntalled.
- `VIP Options Sync`: Allows a VIP to clone their production sites' content from WordPress.com into Quickstart.

Closes: #164, #140, #139, #128

![quickstartdashboard](https://cloud.githubusercontent.com/assets/1120274/2780442/9ee5cb98-cb07-11e3-9799-bcb90ac48b84.png)