VSFilter: move the version to a separate file.
AboutDlg.cpp: use the MPC_VERSION_ARCH define
setup WIP
Simplify preprocessor config.
Soundtouch: use SSE optimizations for x86.
Initialize variables. (WIP)
Remove using std.
change conditions order
constify WIP

error C2259: 'CAviSplitterFilter' : cannot instantiate abstract class   H:\progs\Compiling\mpc-hc_dev\src\DSUtil\DSUtil.h   278 1   mpc-hc
error C2259: 'CMpegSplitterFilter' : cannot instantiate abstract class  H:\progs\Compiling\mpc-hc_dev\src\DSUtil\DSUtil.h   278 1   mpc-hc
error C2259: 'CAviSourceFilter' : cannot instantiate abstract class     h:\progs\compiling\mpc-hc_dev\src\mpc-hc\FGFilter.  97  1   mpc-hc
DSUtil/MediaTypes.h: Be consistent with pragma pack directive.
cosmetics: add new lines at the end of files.
Don't use camelcase words in About dialog anymore.
contrib/checkyear.sh: include pl files in the check.
Bump copyright year for modified files.

Everyone with push rights has to use the precommit hook.

(Hint: `cp contrib/checkyear.sh .git/hooks/pre-commit`)