Rename robolectric-res to robolectric-resources.
Run annotation processor on generated shadows.

Inline shadowOf_ and replace some calls with generated shadowOf methods.
Extract robolectric-fakehttp
Hide references to robolectric-shadows inside of ShadowsAdapter.
Inline Robolectric methods that use ShadowLooper.
Extract FakeHttp from Robolectric, and put it in robolectric-shadows.
Move methods out of Robolectric that belong in robolectric-shadows.
Extract ShadowsAdapter interface from Api18ShadowsAdapter.
Hide references to robolectric-shadows inside of ShadowsAdapter: DefaultRobolectricPackageManager
Remove robolectric's compile-time dependency on robolectric-shadows
Use install-robolectric-shadows to drive Travis build.