MAKE MAGICBROWNIES!

PS2: It's impossible to make Lokesh happy :P
PS3: ERRRR
PS4:Fix everything

This commit is for Lokesh, I really want him to get his builds down to 18 mins. Here's rooting for ya lokesh!

To use: Run "make magicbrownies" and it will clear only the out/target/product folder, for hopefully, faster builds.

Change-Id: I6ff6ffcf7c351cf18d90ab3970b13b806bffed54
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