Fix for qx.Mobile BusyIndicator on Android 4.1.2 rendering bug.
[BUG #6865] Removed test for deprecated env key
[BUG #6865] Replaced deprecated method
[BUG #6865] Fixed doc link
some doc formatting
[BUG #6865] Replaced deprecated class
removed unsupported doc hint
doc fix
[BUG #7279] re-enabled comment text formatting and macro expansion

- flipped the default for 'process_txt' param to True
- as there are much more call sites (in api.py) that need it this way than the
  few in transform/check that need False
[BUG #4514] extracted rrdb file name
[BUG #6865] Removed exclude of removed classes.
minor comments
Code Formatting in Mobile Showcase.
Minor fix.
Fixed merge conflicts.
Merge branch 'master' into rs_restmodule