@dylanfareed => Added management of client applications.

This is a pretty straightforward UI to list, create, edit and destroy Artsy API v2 client applications.

![screen shot 2014-08-26 at 4 05 35 pm](https://cloud.githubusercontent.com/assets/542335/4050875/663a3e98-2d5c-11e4-9494-532a6a37661a.png)

For some reason destroy confirmations aren't working (no popup). Couldn't figure it out, will open an issue.
The `.post` will raise an exception. I haven't dealt with making that pretty or being handled, but I suppose either way we need to do that at the application level. I would also like to kill the flash error assignment, this was a copy paste.