Version bump to 6.1.0
Add XamForms notes to routing docs
Update Splat to 1.5.1
Create a Xamarin.iOS Unified project
Fix infinity Usings
ints to nints, floats to nfloats
Propagate view activate/deactivate to subviews

Addresses https://github.com/reactiveui/ReactiveUI/issues/719, except
for table/collection cells.
Update formatting
Rename ICanActivateView -> ICanForceManualActivation
Missed file from the last commit
Merge remote-tracking branch 'origin/pr/735'
Check length of resulting string before removing the last '.'

The resulting string could be empty when `expression.GetExpressionChain` returns an empty list.
This happens e.g. when the method is called with an expression like `x => x`
Merge pull request #741 from eggapauli/FixExpressionToPropertyNames

Check length of resulting string before removing the last '.'
Added the ability to the derived collections to add a handler for when an item is removed
DerivedCollection onRemove clean up
It turns out, this was bad.

You can get things out of order, and it almost always slows down animations.
Merge pull request #745 from reactiveui/dont_do_this

Remove opportunistic scheduling in Cocoa
Throw in some casts to make 64-bit happy
NSAction hax
64-bit'ize Testing