* AppCompat should now be able to set title bar visibility programmatically
* coding style changes
* making sure page layout runs only on fullscreen flag changes
* Make core Ticker abstract and public
Make the core Ticker abstract and public so it can be inherited by platform
implementations; remove now-unused parts of original Ticker; add CreateTicker
to IPlatformServices; remove unused CreateTimer methods from IPlatformServices
* Add docs for Ticker
* Remove unnecessary Ticker.Default set
* Move Ticker into Internals
* Update Ticker docs
* Remove old Ticker docs
* Remove commented code
more thought to fix;
Fix a few more warnings VS didn't see fit to raise as errors
Adding comments to `pragma warning disable` statements
pragma comments
Fix typo
Set TabletMasterDetailRenderer back to previous version
Fix incorrect config access in legacy activity