Update for Android 5.0.1 Build LRX22C.H5

Changes include:

* Use modified Device Tree image from official HTC kernel rather than
  basing it off of the CyanogenMod kernel.

* Remove Torch.apk.  It is no longer needed thanks to the flashlight
  quick toggle in Android 5.0.

* Remove all but two build.prop customizations.  The upstream build
  basically comes out of the box supporting Verizon and CDMA--moreso
  than the 4.4.4 build--it is just trivially disabled in the build.prop.

* Add startup script to enable the built-in screen casting support.
  This seems to be disabled on rooted devices otherwise.

And that's it!  This is otherwise bit-for-bit the version that Google
and HTC released for the global phone.