* Removed function o_version_string
* use Octave.home in octave_config (with man page on its own)
Add multiple functions to show octave configuration and adapt library loading procedure
Add cleanup script for Windows (simply call the Linux cleanup script)
Minor fixes in configure.ac: macro AC_OCTAVE_CONFIG was using the same internal variable from AC_OCTAVE_MKCONFIG
* Move windows m4 macros to exec/m4.win
* synch configure.win with new configure.ac