Merge branch 'release/1.0' into develop
Update MSBuild Extensions project

I updated the MSBuild Extensions project. I switched to Visual Studio
2013. I removed the use of the GenerateVersionInfo task to use the
WriteCodeFragment MSBuild task instead.

I removed the strong name key and signing from the project. The
assembly is now unsigned. I evaluated the pros and cons of strong
naming and decided that strong naming was not beneficial for this
project.
Update NuGet specification

I updated the ImaginaryRealities.MSBuildExtensions.nuspec file to
include release notes for the 2.0.0 release.
Merge branch 'release/2.0.0'