recovery: set 18x32 on 560dpi as well

* this is the setting for shamu, it should be comparable to xxhdpi

Change-Id: I4d4b0405b6fcb3493dc5da0a712ce54f83d9ab6f
roomservice: Improve new device retrieval

Without credentials, GitHub's search API limits requests to 60/hr.
The existing method to add a new device is to fetch JSON-formatted info
for ALL CM repositories and then search for the device. In doing so,
more than 10 pages of results are returned (i.e. more than 10 requests
per device). This is clumsy, slow, and limits use of roomservice to
only ~5 devices per hour.

Instead, only return search results for repositories that have the
device name in the repository name. Then, one device = one request.
It's faster and allows closer to 60 device setups / hr.

Additional bailouts are included to stop the script earlier than later
if a device is not found.

Change-Id: I7f914d7ede82da0f100d9fd6cf8b603177962e48
build: fix dopush for SystemUI

The path for SystemUI has changed in Lollipop

Change-Id: Ib2126f48f6769e5f91d0aa1d44d4049bdbe1deff
envsetup: new function cmka

- The build system adds a clean-<module> target
  for each module / package.
- This utilizes that and cleans and builds using mka.
- If no argument is supplied, it runs "mka clean".
- If argument is (bacon|otapackage|systemimage), it
  runs installclean.

Change-Id: I582ac2f92df3278c41c254c73e9c02ad7f406851
(cherry picked from commit eb74c2f2b9bb708e77edfdbb8ba0d0b716fef2fc)
(Also sneak in another minor change, a help entry for mkap)
releasetools: clean up residual targetfiles-* dirs in /tmp/

Change-Id: I3792307663f8a85513e102c8bf3d78cf4e514760