lavfi/buffersink: move the filter structures at the end.

Also apply a few cosmetic fixes (spaces, trailing comma) to
help match them with the fork's implementation.
dynamic loading of shared faac library
avfilters: better behavior of frei0r on win32
programs: print version info and configuration only on -version
configure: fix modplug detection (it needs +lstdc++)
no Werror on implicit-function-declaration and missing-prototypes
custom icon and windows resource
use upstream version tag, my repo is always rebased