Create CONTRIBUTING.md
Update CONTRIBUTING.md
Fix for Issue #131

BindingTypeConverters EqualityTypeConverter.DoReferenceCast doesn't
handle nullable values
Add some more tests
Fix type-conversion types for two-way binds
EqualityComparer should always win if comparing T and T?
Converting double? (null) => double should fail
Fix the build on platforms that suck
This folder keeps trolling people, nuke it
Merge pull request #133 from reactiveui/nullable-value-types

Handle Nullable <=> Non-Nullable value types correctly
Merge branch 'master' of https://github.com/reactiveui/ReactiveUI
Fix for Issue #130

Have ReactiveValidatedObject remove the cache entry when the Changing
event happens rather than Changed.
Add Xamarin.Mobile DLLs
Initial hack at creating an Rx version of Geolocator
Fix build file derps
Add a test Geolocation implementation
Add methods to override Geolocation
Add a .gitignore
Add script to nuke remote branches
Merge branch 'master' into bcl-async-pack-everywhere