Closed Task: MQ: Move to VS2012/.NET 4.5 [810]

Change solutions to be in VS2012 file format. Change projects to target framework version 4.5.

Note that this task is blocked on v4.0 OOB RTM shipping/branching first.
Comments: Done: http://aspnetwebstack.codeplex.com/SourceControl/changeset/c18dbd8306a2