Updated nuget.exe to the latest, 2.7.1.
Moved the nuspec to a convention friendly location, and made the version number updatable by the build.
Added the license name to the license, per a suggestion from Anne at CodeBetter.
Renamed the nuspec file to match the convention.
Updated the nuspec <file/> entries for the CI build process.
Merge pull request #74 from jbuedel/master

Use nuget conventions, for simpler packaging in TeamCity.