Fixed some git  history on lift 3.0

During some refactoring applied to Lift_30, we lost some history of files like WiringUI and LiftServlet.
This pull request reverts those changes where the files were deleted on one commit and added on a diff package on a separate commit,
which results in those files having a shorter history (as if they were new to lift 3.0)

Along the way I ended up undoing some extra changes, like there are some deprecated methods that came back. I will send a separate 
pull request to remove those.