* Add pressed and released events to Button
* Update ButtonRenderer.cs
* Apply safely casting to android button renderer
* Use safety casting for Android buttin renderer
* [Windows] Fix modal pages being laid out below soft buttons (#395)
* Add sample HanselForms and TwitterDemo to ControlGallery (#651)
* [Controls] Add Hanselforms sample
* Remove extra twitter sample
* [Controls]Add TwitterDemo sample
* [Controls] Fix build
* Slider should show user-set value on initial load (#378)
* [UWP] Use toolbar foreground color on primary items (#640)
* Avoid duplicating code in OmPlatform (#591)
* [iOS] Entry should not pass a newline to the next responder (#397)
* UITextField should not return so that the next field does not get passed a newline
* Added code sample
* [XamlC] import members on x:Static and factories (#642)
* [Xaml] support short Properties for PropertyCondition (#645)
* Xamlc compile data triggers (#648)
* [Xaml] DataTrigger and PropertyCondition no longer use a ServiceProvider
* [XamlC] avoid generating ServiceProvider for unused ProvideValue
* fix tests
* Fix comment typo
* [UWP] Fix TextBox style for foreground focus color (#618)
* Adding image to use for CellsGalleryImageUrlCellList UI test
* Update ImageCellListPage to use an image we control;
Update CellsGalleryImageUrlCellList test to wait longer than 1s for images
to load if necessary
* fix nre when changing content in datepickerselected (#494)
* Make CellsGalleryImageUrlCellList test finish early if possible
* [iOS] Change keyboard type while keyboard is visible (#443)
* Change keyboard while changing text
* add sample code
* [Android] Fix NavigationPage dispose crash when it parents a MasterDetailPage (#577)
* fix navigation page dispose crash
* changes after review
* [XamlC] detect duplicate x:Name at compile time (#655)
* [XamlC] detect duplicate x:Name at compile time
* invoking methods with the right arguments produces better results
* Make UWP toolbar display rules consistent with other platforms (#638)
* Allow subscriber to be collected if MessagingCenter is the only reference to it (#617)
* Repro
* Make messaging center callbacks weak references
* Preserve attribute
* Fix test method name
* Watch for collection of actual delegate target instead of wrapper delegate
* Preserve the original platform instance when changing main page
* Better tests for lambda situations
* Update tests, make callback target a weakreference if it's the subscriber
* Ensure old Platform MessagingCenter subs are gone before creating new Platform
* [iOS] Prevent multiple ListView cells from being swiped simultaneously (#578)
* disable multiple cell swipe
* add sample code
* refactored
* convert to weakreference
* remove null setting
* change weakreference setting place
* remove if
* revert isopen changes
* add instructions
* [WinRT/UWP] Apply BackgroundColor to Stepper buttons (#581)
* [WinRT/UWP] Apply BackgroundColor to Stepper buttons
* Add explanatory text; use nameof
* Move explanatory text to a label
* Return group instead of internal class (#461)
* [iOS/Android] Move Map camera to correct region on layout change (#548)
* Move to region on layout change
* remove visibility check
* [iOS] Platform specifics for controlling Picker SelectedIndex change behavior (#540)
* picker selected index could change when picker view is dismissed
* use enum
* [iOS] Ignore intermittent failing test on XTC (#666)
* [UITest] Update to UITest 2.0.5 (#665)
* Rebase the current branch onto upstream latest
9a6c9a0896