Fix build issues
Replace hard coded Interactions DLL with Behaviors SDK reference
Update Windows Phone Test Manifest to allow for toast notifications
Add Pull To Refresh test in Windows Phone project
Clean up PullToRefreshPanel
Revert Math.Abs back to ScrollViewer.VerticalOffset == 0.0
Remove null propagation (Github does not support newest C#6 code)
Remove more null propagation to fix AppVeyor
Merge pull request #1 from drasticactions/master

ビルドエラーを修正、WPテストを追加
to pullrequest branch