Build utility used to calculate the semantic version based on the current build and the latest NuGet package based on: http://semver.org/
Note: To rebuild nuspec files for integration testing, the file "PackSamples.bat" must be run. Each sample project includes a .nuprod file that will be copied to a matching .nuspec before a pack command is executed. This is to prevent the build server from trying to pack and push these sample projects as NuGet packages.