Unbreak playback of DVDs with menus, broken by r1245.

Patch by Erik Auerswald \auerswal % unix-ag * uni-kl * de/.


git-svn-id: svn://svn.mplayerhq.hu/dvdnav/trunk/libdvdnav/src@1251 625a9de0-492d-0410-920c-a7e632af1907
win32: handle better dvdnav map files on win32
added gitignore from git svn show-ignore