Update Metrics.cs to support Sets metrics
Update Statsd.cs to support Set metrics
Merge pull request #31 from mynameismud/master

Added support for Set metrics
Added unit tests for Set metrics.
Merge pull request #32 from mynameismud/master

Added unit tests for Set metrics.
Ignoring the NuGet packages folder
Removing unused usings.
Merge branch 'master' of github.com:DarrellMozingo/statsd-csharp-client