Disable custom theme and fix png loading

We will have to update the zip handling later. Now at least TWRP
boots up to the GUI.

Change-Id: I4182896eb095cab52fb0f1c9c20b6605e35677b9
Fix zip install

We never used the feature for running a custom theme during zip
install. We can re-implement this later if we like. For now, we
will remove this feature until we are ready to make it work.

Change-Id: Ice71b0b863c7ef17376e3f973d48b810be567c33
Update adb sideload feature

Change-Id: Ib503d0e87434e1a28430779302d6565211c26592
Merge pull request #2 from omnirom/android-5.0

merge into lp5.0