Install work

Now a bug has been fixed where if the batch file is right clicked and
selected to be run as an administrator that the current directory would
be the wrong one.  Line 4 fixes this bug.  Also, if copying buildify to
%SYSTEMROOT% succeeds or not the %APPDATA% buildify will be deleted
because it is not needed.  The file will better detect if it is
installed.  Probably some more beautiful code is needed in the
installation process because probably buildify should not even be
installed to %APPDATA%\buildify if the user does not want it to.  This
will be worked on more later.