build: Fix all the things

* OTA tool
* In line buiding
* Remove squisher
* Backup tool
* Recovery ramdisk creation
ota_from_target_files: Comment a few more recovery related
lines

We don't want recovery in our flashable zip

Change-Id: I277dd2f42abde2d3ac43302eb5b51630f8b34171
Signed-off-by: Evan Anderson <evan1124@gmail.com>
Makefile: get rid of CWM recovery stuff

Change-Id: I8fc553996d703d48f0c48b363d4366d3a11ce787
Signed-off-by: Evan Anderson <evan1124@gmail.com>
Allow cache img to be disabled

Change-Id: Idbd83f449c0a3265ee9c35b60528a4d1c237c28a
Enable incremental builder to find files that moved, and
try to process them via patch + rename, instead of
delete + add.