WIP -- Changes coming to the team city build light support.  If you configure an optional regex, branches matching the expression will be considered critical branches.  When a critical branch is building, the light will blink blue.  When a non-critical branch is building, the light will blink green (if all critical branches have built cleanly) or red (if one or more critical branches had an error in the last build).  When nothing is building, the light will reflect the status of all critical branches instead of just the default branch.

 Adding team city sharp library for better access to team city api.  Upgrading all nuget packages.