Xamarin.Forms 1.2.2 Prerelease 3 on Nuget

We hope this will be the final version of 1.2.2 that we will promote as stable.

Bug Fixes

[All] ImageCell and Button properly update image which image source changes.
[Android] ToolbarItems set on a NavigationPage should now show up.
[Android] Button text no longer will randomly re-align to the left side of the screen
[XAML] Using x:Name inside of a DataTemplate no longer triggers errant fields in g.cs file
[XAML] x:TypeArguments now works at root level, fixing generic subclassing from XAML
[iOS] ActionSheets should no longer double trigger if the root page gets re-assigned
[Core] There is now a better exception thrown if an Element with a parent is attempted to be used in a PushAsync operation.

[Android] Reported wrong minimum size for most controls, causing layout issues
[Android] ActionBar no longer wrongly shows up action when navigation page is not navigated
[Android] MasterDetailPage no longer crashes when re-shown with retained master
[Android] Fix issue where toolbar items sometimes didn't show up
[Android/iOS] Map reported wrong size request
[iOS] Fix crash when assigning to ListView.Source after being unrealized
[WP] Geocoder backend now returns actual address strings
[WP] Fix issue where toolbar items sometimes didn't show up
[Core] Fix crash when ShortNameBinding set but not grouping enabled
[Core] navPage.Navigation.PopToRoot now works as expected

NavigationPage.Get/SetTitleIcon takes a FileImageSource and not a string (as was intended). This was an oversight.

[Android] SwitchCell no longer leaves phantom switches in ListView
[Android] Fixed an ArgumentOutOfRangeException with ListView when grouping.
[Android] Fixed NullReferenceException from SetActionBarTextColor () when there's no ActionBar.
[Android] ListView no longer mixes up cell order after a layout change.
[Android] VisualElement.Opacity works again properly.
[Android] Page and Cell Disappearing events is now raised more reliably.
[Android] Tapping back while the page animation is still playing no longer crashes.
[Android] Several memory leaks plugged.
[XAML] Fixed an issue with StaticResource lookup in data templates.
ImageCell.ImageSource changes now are reflected in the UI.
Grid now correctly does a re-layout if its columns or rows change.