Added a package to install git-tfs bridge binaries
renamed the visual studio package to be more "generic" and to version with the "marketing" version not the actual versions... Ex. 2013.0 instead of 12.0
Added a package to install PowerShell 4.0 on 2008R2, 2012, and 8. Windows 8.1 already has 4.0. For Windows 2008 and 7 this package will be successful if powershell 3 is already installed on the computer.
Added Power Shell Community Extentions package.