envsetup: Add some more commands

 * mmp: Like mm but pushes the built files afterward.

 * mmmp: Like mmm but pushes the built files afterward.

These may be useful when doing debugging on a individual library,
since it builds the library and pushes the new library to the device.

Examples:

mmmp -B device/samsung/vibrantmtd/libgps
mmmp -B packages/apps/Torch

Thanks: tpruvot for revisions

Change-Id: Ia6bdd2b63797ea86e164af69496b70ea6d7c5156