Fix namespaces in tests
Consolidate specs into a shared project
Update PCL's to include WPA81
Move shared code into a common project
Add support for WinPhoneApp 8.1
Add a WinRT80 version and ensure output paths are correct
Rename the shared specs dir to match
Fixup import paths
Merge branch 'master' into WPA-Support
Merge branch 'WPA-Support' of https://github.com/onovotny/fluentassertions into v3.1

Conflicts:
	FluentAssertions.WinRT.Specs/WinRT.Specs.csproj