* ./plugins/chroma/i420_rgb8.c: fixed a warning.
  * ./plugins/filter/deinterlace.c: fixed chroma deinterlacing.
  * ./plugins/kde/kde.cpp: the KDE interface compiles again.
  * ./plugins/mpeg_system/mpeg_es.c: fixed a segfault I introduced today.
  * ./plugins/network/ipv4.c: cosmetic fix.
  * ./src/interface/main.c: fixed a typo in the --help output.
  * ./src/misc/netutils.c: fixed a segfault in the vlcs communication; still
    unstable but solving other bugs won't do any good without rewriting the
    whole playlist code. Which I'm doing right now.