Revert "smackaud: clip output samples"

Smacker audio uses overflows instead of clipping.

This reverts commit 375ca0aca81be2951d9ba4731196e70e490d3cdf.
smacker: fix off-by-one error in palette expanding code
matroskadec: silently skip CodecState element.

mkvmerge apparrently uses it for mpeg1/2 video, but it contains the same
information as CodecPrivate, so it can be ignored.
avconv: make -aspect work with streamcopy
configure: make jack depend on pthreads
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