Change build binary path to make NuGet integration simpler.
NuSpec file for publishing to NuGet.
Merge remote-tracking branch 'origin/master' into dev
Add NuSpec to Solution work items.
Rename WindowsStore sample Windows8.

In preparation for a separate Windows 8.1 sample.
Complete restructuring of Windows 8.0
Windows 8.1 projects and sample.
Make Windows 8.1 sample have an ITrackOwnView like 8.0
Simplify basic API (breaking change)
1. AutoMeasurement.StartAsync no longer returns task
2. MeasurementConfiguration now in main namespace
Update README for API changes.
Rename StartAsync to just Start for 1.0.
Update copyright date for 2014.
Correct Windows 8.1 build path for release builds.
Windows 8 & Windows 8.1 build path and packaging folders.
Fix background cancellation test.
Give each project a unique obj folder to prevent concurrent build failures.
Update README and NuSpec for 1.0 release.
Add NuGet reference to getting started, Windows 8.1 retarget notice to contrib.