* [iOS] fixes#3525 - add epsilon for float compare and make region immutable
* [ControlGallery] spread out spans to account for click slop
* [ControlGallery] - adjust span slightly for android test
* [Core] remove private
* 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
Shane Neuville
Adam