* functions.js : add option to select directories too

   i don't really know how i should handle it)
 * add now playing info

Mac OS X audio module is now unified for analog and digital output. todo: test on a shitload of devices, test for stability (removal of USB audio device during playback), rename the plugin

some people might be using these controls regardless of the http interface
code itself.

Things that still need to be done :
 * check - and fix - compatibility with non-firefox browsers (it
   doesn't work in IE yet)
 * bind actions to the playlist sort/delete actions
 * fix the subtitle options stuff
 * add a "browse" dialog (i'm not sure if the is a good idea ...
   should be password protected)
 * VLM interface

Comments are welcome :)

* modules/gui/wxwidgets/interface.cpp: last issues with the display of the embedded playlist should be solved.

* modules/gui/wxwidgets/interface.cpp: still more improvements to the display of the embedded playlist.

ugly dirty horrible thing so that text/xml files don't get labeled as text/html (and .xml files will now be parsed by VLC)