Remove dll and exe version numbers from MapServer and PHPMapscript dev packages

[Jeff McKenna]

The dev packages for mapserver and phpmapscript currently have the following files:

mapserv_51.exe php_mapscript_51.dll phpinfo_mapscript_51.php php_mapscript_51.pkg.html

I would like to avoid version names in the filenames (we battled that in MS4W), so I propose:

mapserv_dev.exe php_mapscript_dev.dll phpinfo_mapscript_dev.php php_mapscript_dev.pkg.html

[warmerdam]

I have repackaged these to use the new conventions.

I also enabled WCS 1.1 by adding -DUSE_LIBXML2 to the nmake.opt file. I'll need to make building this way easier in trunk.

[Jeff McKenna]

verified. thanks.