Moar clean options!

appclean: clears out all apks
imgclean: clears out all img files
kernelclean: clears out all kernel stuff
systemclean: clears out all system stuff
recoveryclean: clears out all recovery stuff
rootclean: clears out all root stuff

Change-Id: I3b6d9ca53e083385cca3ae66084c5a39901b3d1b

Conflicts:
	core/main.mk
Add magic

Removes target/out
Conflicts:
	core/main.mk

Change-Id: I2e3388d5b807ecb37fb301bb4128804929f57dab
Lets show what we are building with

Conflicts:
	core/dumpvar.mk

Change-Id: Ifd8c6b22c2edfcf78e7dd099de4c141102731444
Make novo

This should work as well as a clobber without removing the host files.

Change-Id: I81cee7eb963b6155760f1cc7de2dc752c2ddd938

Conflicts:
	core/main.mk

Conflicts:
	core/main.mk
Undo derp

Conflicts:
	tools/roomservice.py

Change-Id: I5a0ef474763444d8c991ad4ba71bd98504f70608
Add option to flag 4.8 builds for devices that do not support 4.9 yet

Conflicts:
	envsetup.sh

Change-Id: I97b9b4fda0b90292acab488627f31c95572cbb52