avformat: utils: K&R formatting cosmetics

Also adjust some comment wording / spelling and reorder header #includes.
x86inc: Speed up assembling with Yasm

Work around Yasm's inefficiency with handling large numbers of variables
in the global scope.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
dynamic loading of shared faac library
no Werror on implicit-function-declaration and missing-prototypes
custom icon and windows resource
use upstream version tag, my repo is always rebased