mpv update to 0.2.1
add xbitmaps
add xsetroot

this is the command that's supposedly able to change the background
color, however it didn't work when directly used.
it's possible that pcmanfm relies on it when it tries to change
the wallpaper.
add swig
svn: also install perl modules, needed for git-svn
perl: do not hand out DESTDIR path to MakeMaker via Config
add tool to hunt down a function reference

it takes a search term (function name) and a elf file as arguments.
all DSOs are then recursively searched for the function.
add real lua
mpv: add lua
sdl: disable code which uses mprotect +x, potentially causing grsec to kill the process
ffmpeg: disable code which uses mprotect +x