glib: convert to new package format

Signed-off-by: Stephan Raue <stephan@openelec.tv>
gmp: convert to new package format
pcre: convert to new package format
libtool: convert to new package format
pcre: fix build

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libxml2: convert to new package format
scripts/image: include git shorthash in version
libfontenc: fix typo
scripts/build: cosmetics

... find: `...sysroot/usr/lib/': No such file or directory
libxml2: add host build depends
libcec: update to libcec-2.1.4

closes #2816
xf86-video-nvidia: update PKG_URL
libva-driver-intel: update to libva-driver-intel-1.2.2
keep waitonnetwork service damn simple

- an exit status is not needed here. we do not care if network is not up
  in the specified interval. it is up to the user to tune it
- VERBOSE is not used.
ffmpeg: add more xbmc patches
xbmc: update to xbmc-13.alpha-ee5f905