Updated http://www.nmr-relax.com/windows_devel.html to include another SCons bug.
This is the bug http://scons.tigris.org/issues/show_bug.cgi?id=2849 giving the error:
'cl' is not recognized as an internal or external command, operable program or batch file.
which the SCons developers stubbornly refuse to fix!!!
Authored by: bugman 2013-05-08
Parent: [r19673]
Child: [r19675]
