* [Core, UWP, Android] support TabStop/TabIndex
* removing linq
* add iOS / MacOS implementation
* add WPF implementation
fixes UWP implementation
* - addressing comments
- improve test
- optimizations
- added previous tab direction in same tab group
* addressing comments
* [Android] support tabstop for pickers
* - moving shared code to a static class
- removed reflection
* ITabStop -> changed to internal, renamed, added in to fastRenderers
* Update ITabStop to be public
* Bindable Text Property on Span
* Minor fix and cleanup
* Cleanup of code after review
* Android TapGestureRecognizer for Span
* iOS Span TapGestureRecognizer enabled
* Corrected Android issue with LineHeights
* UWP code cleanup for new Span properties
* WPF Span GestureRecognizers added
* Set Parent and reduce calls to Text property
* Add gesture recognizer to label if not present.
* Label Changed to handle Span and GestureRecognizer changes.
iOS updated to accomodate new CompositeGestureRecognizer
* Move Android to new Label structure
* Overridden Collection Clear events
* Refactoring code
* Refactor to extensions for span position calculations
* Further refactor and cleanup after rebase
* Fixed rebase issues
* Bug fixes, refactoring and performance improvements
* Moved to region and supported triggering overlapping regions, including inflation
* Inflation added
* Region inflate, and GestureElement
* Refactoring
* Refactoring of naming and loops
* Cleanup
* Removed command
* UWP tap span fix
* Detect child gesture recognizers in Android
* BackgroundColor support on span for WPF
* Remove trailing tabs
* Region UnitTests
* Refactor based on review
* Further code cleanup
* Remove InternalsVisibleTo from Core to XF.Platforms.*
* Changes per Jason's code review
* Move LockableObservableListWrapper to internals namespace
* Changes per Stephane's code review
* update docs
* Touch code to get CI to run tests
* Rebase; Update documentation
Pavel Yakovlev
Rui Marinho
kingces95
Adam
Jason Smith