Fixes for windows:

- configure: check for cl (and not for cl.sh) as compiler
- Makefile.win32: fix detection of F77 compiler
- root-config.in: set compiler to cl and not cl.sh.


git-svn-id: http://root.cern.ch/svn/root/trunk@36840 27541ba8-7e3a-0410-8455-c3a389f83636