* fix seg fault with the xcb (soft and render) engines
Notes:
* install fontconfig >= 2.7: it frees correctly its mem
* strangely, the xrender xlib and gl xlib engines are
segfaulting when XCloseDisplay is called (in the shutdown
function). It does not with soft xlib. I absolutely don't
know why.
SVN revision: 43373
* add -datadir option in command line, so that the data directory can be
specified with command line. Best way to manage data dir with Windows
CE OS, which does not support env variables...
SVN revision: 34402