Windows Phone 8 projects, sample and start (does not yet compile)
Windows Phone 8 project now compiles.
Windows Phone 8 functionality operational.
Unit tests for Windows Phone 8.
Locking version to avoid System.Concurrency.
Fix Windows Phone 8 unit tests.
Merge branch 'master' into winphone-8

Conflicts:
	Source/CSharpAnalytics.Tests/Activities/CampaignActivityTests.cs
	Source/CSharpAnalytics.Tests/Activities/SocialActivityTests.cs
	Source/CSharpAnalytics.Tests/AutoMeasurement/AnalyticsScreenNameAttributeTests.cs
	Source/CSharpAnalytics.Tests/Protocols/Measurement/MeasurementConfigurationTests.cs
Merge branch 'master' into winphone-8
Merge branch 'master' into winphone-8
Merge branch 'master' into winphone-8
Track launch reason on Windows Phone 8.
Correct Windows Phone version number code.
Merge branch 'dev' into winphone-8

Conflicts:
	Source/CSharpAnalytics/Network/BackgroundUriRequester.cs
	Source/CSharpAnalytics/Protocols/Measurement/MeasurementAnalyticsClient.cs
Fix broken unit test BackgroundUriRequester test and names.
Remove NuGet/BCL dependency from CSharpAnalytics.Test.WindowsPhone8
Add WindowsPhone8 to NuGet package & build.
Add WindowsPhone8 to README.
Ensure WindowsPhone8 test project builds as part of RELEASE.
Add missing unit tests to WindowsPhone8 tests.
Allow platform-independent WindowsPhone8 tests and do not deploy by default.