[BUG #7100] Create a drawer widget for qx.Mobile 


* Formatting.
[BUG #7100] Create a drawer widget for qx.Mobile 


* Formatting.
[BUG #7100] Create a drawer widget for qx.Mobile 


* Formatting.
[BUG #7100] Create a drawer widget for qx.Mobile 


* Updated mobile skeleton for Drawer variables.
* Fix Firefox problem with FlexBox Layout.
* Fixed wrong styling key from "transition-duration" to "transitionDuration"
* Fixed wrong Picker Position in Firefox.
[BUG #7100] Create a drawer widget for qx.Mobile 


* Updated iOS styling.
[BUG #7063] add example when preferring tree patching over regex's
minor typo
[BUG #7063] working version using normal AST (treegenerator and formatter)

- before changing to CST (treegenerator_3 and formatter_3), for better
  pretty-printing of result
[BUG #7063] working version with CST (treegenerator_3 and formatter_3)

- using a string template for the replacement tree, rather than constructing
  this tree by hand (much better!)
- fixing treeutil.findChild along the way
[BUG #7063] generalized patch.py for multiple re-writes

- using a local table of mappings old code -> new code
- the new code is a string template where the arguments from the old calls
  are spliced into
- relies on treegenerator_3.toJS() so improved a couple of those (still some
  missing)
- then the expanded replacement strings are parsed into a tree again, and the
  old call node is replaced
- early stage, still has bugs
* API doc and updated class structure.
Update of DataBinding Showcase
Fixed Typo in API doc
[BUG #7100] Create a drawer widget for qx.Mobile 


* API Change... property values "front"/"back" renamed to "above"/"below"
* Bugfix when popup is used inside of a drawer.
[BUG #7100] Create a drawer widget for qx.Mobile 


* Added logic for hiding Master Container on Detail Page Start (configurable)
[BUG #7063] re-write of method calls working

- the patch.py-base re-writing of qx method calls is working (on a test
  project)
- commented those cases out in the regex-based .dat file
- one open issue: the monadic call to qx.lang.Array.toArray is not working
  yet
[BUG #7063] fixed representation of re-writes (list rather than map)

- to have the same key multiple times (e.g. with different arg count)
- also gather all arguments in getArgs(), to better distinguish
  between e.g. Array.toArray/1 and Array.toArray/2
- (otherwise toArray/2 gets re-written with the pattern for toArray/1)
- removed old code specific to .trim()