patches: sync ff
packages: updated libpng to 1.6.11
packages: libcddb does not need libcdio

it uses it only for examples, this fixes an
harmless dependency loop
packages: avoid dll exports in opus, disable doc and samples
packages: disable wine in dlfcn-win32
packages: tell enca we don't want external programs
packages: enabled subpixel rendering in freetype
packages: fixed gavl clock monotonic detection
packages: add info about two fixed cve in giflib
packages: libcddb expects to have regex
packages: explicitly disable glib in fribidi
packages: add info about two fixed cve in libjpeg-turbo
packages: ogg's configure script is not able to compute some sizeof
packages: add info about a fixed cve in libvorbis
packages: added some --disable to theora
packages: updated openjpeg added new url and watchfile
packages: removed watchfile for libass
packages: disabled test prog in speex
packages: renamed all patches in a consistent way
build: updated license with some info about patches