Recent Projects Tweak

1. Moved "Open Folder…" to the top so that we can open folders easily even if the recent project list is long.
2. Moved "X" icon to the left so that we're able to remove the folders easily. Right now to remove multiple folders we have chase the icon because its x-position depends on the item width.
3. Tweaked divider spacing.

![screen shot 2013-09-16 at 2 30 00 pm](https://f.cloud.github.com/assets/1495261/1152959/4c2e219e-1f17-11e3-9b0a-e826325f28e3.png)