Octave/Win32 update

[michael . goffioul]

A new version of octave for Win32 has been made available, see
http://www.dbateman.org/?page=octave&lang=EN
 
The main changes from previous version are:
 
- Update Octave CVS
    . fix "cd" to root dir
    . fix help searching when .m/.oct file exists
	- Update octplot SVN
    . fix legend label order
	- Reduce number of DLL's by sharing them
	- Upgrade to pcre-7.0 (instead of 6.3)
	- Upgrade to gnuplot-4.2rc4 (instead of 4.0)
    . wxt terminal with anti-aliasing
    . enhanced text format with subscript
      and superscript (like Matlab)
	- MSVC8 runtime DLL's are now installed locally
  when required (no admin rights needed)
	- MSVC71 runtime DLL's are installed if missing
  on target system (needed by Console2)
	- Add scrollbar to Console2 interface
	- Provide optimized linear-algebra libraries (ATLAS)
   for P4/SSE2 and PM/SSE2
	- Include additional packages from "extra/" subdir
  of octave-forge
    . NaN
    . Windows
    . civil
    . integration
    . mapping
    . soctcl (not functional as "listen" is not
      implemented for Windows)
    . symband
    . tsa
	- Add README and octave-forge links in programs menu

Michael.