Make the WinRT PlatformBitmapLoader public

otherwise BitmapMixins is inaccessible
Cache values in ModeDetector.
Use HasValue.
Merge pull request #79 from jlaanstra/cache-inunittestrunner

Cache ModeDetector values.
Version bump to 1.4.3
Merge pull request #71 from factormystic/patch-1

Make the WinRT PlatformBitmapLoader public
Add new projects for Unified API
Update bitmaps to be Unified-capable
Update Colors for Unified API
Fix oopses from 2.0 backporting
Fix NuGet profile names
Merge pull request #81 from paulcbetts/xamarin-64-1x

Xamarin 64-bit support
Version bump to 1.5.0
Update Splat nuspec to have correct URLs
Target combase.dll in attempt to fix certification issue

/cc https://github.com/reactiveui/ReactiveUI/issues/718