* Stop crashing when I accidentally click on the Perf gallery
* [Core] Add TitleView to NavigationPage
- also add unit tests
- fixes#1716
* [Android] Add ClearRenderer static method to Platform
* [Android] Use Platform.ClearRenderer
it's a straight extract from this class
* [Android] Implement TitleView and TitleIcon on AppCompat backend
using lessons (and some duplicated code) from ListView header/footer views.
* [iOS] Implement TitleView
* [UWP] Implement TitleIcon and TitleView
* [Core] Add NavigationPage.BarHeight
* [Android] Use BarHeight
* NavigationBarGallery updates
* [Core] Add iOS HideNavigationBarSeparator Platform Specific
* [iOS] Implement HideNavigationBarSeparator Platform Specific
* sample search page
* Convert BarHeight to Android platform specific
* Reset BarHeight when leaving the gallery
* Add a sample TitleView xaml page
* VisualElement >> View
* Fix comment
* Improved SearchTitle sample page
* [Core] Set TitleView Parent on Changing instead of Changed
Changing is too late for the iOS layout
* [iOS] Fix layouts in iOS10
* [iOS] Stop content clipping
* Expanded test page
* [iOS] Fix HideNavigationBarSeparator for iOS<11
* [iOS] Layout TitleView with margins
* More tweaks to test page
* [UWP] Fix OnDetailPropertyChanged if/else
* [UWP] Comment empty setters
* Convert commented code to more useful comment.
* Adjust performance test async call
Samantha Houts