R1:b381265d926a

First cut of new Project Home

Summary:
First pass at a new Project Home page. This is starting to sprawl, so punting this up now before it gets too large.

- Project homes now have "large header"
- Custom Fields / Descriptions are in the main column
- Feed is simpler visually
- new "Background" option for PHUIObjectBoxView
- move header buttons globally to "Grey" instead of "Simple"
- New color and hover states for "Grey"
- Transitions on Buttons haha
- Edit Icon on Nav is now under "Manage" panel…