radically updated build scripts for working with nuget and multi-targeting
Renamed _build_tools to Tools
More Tools housekeeping
Enable Nuget Package Restore
Updated packages.config in the tools directory
More updates to build script
Resyncronized gitignore with github/gitignore/VisualStudio.gitignore
Updates to build script to better support multiple scenarios
Had to mark a test as Ignored due to Tolerance equality problems
build script updates