Use TSender.
Make sure we dispose the WhenAnyValue on deactivation.
Fix indent.
Only subscribe to IsHitTestVisible if loaded.
This wants to be global.
This should be Where.
Change interface to return an observable of bool.
Fix activationlogic for the new interface.
Fix test.
Implement updated interface.
Update activation tests.
Removec unused observable declarations
Merge remote-tracking branch 'origin/pr/689'