MPC-HC API: Fix some warnings when handling HWND handles on x64.

64-bit versions of Windows use 32-bit handles for interoperability so we can just truncate/sign-extend them.
VSFilter: move the version to a separate file.
AboutDlg.cpp: use the MPC_VERSION_ARCH define
setup WIP
disable a couple more /analyze warnings for VS2012
Soundtouch: use SSE optimizations for x86.
remove ratdvd
Be consistent with the pragma pack directive.
Remove unused variables.
Fix the C4701 warnings: Potentially uninitialized local variable "XXX" used.
Remove unneeded typedef QWORD.
Initialize variables in the constructor.
Const correctness. Also pass the argument by reference when possible.
const correctness (3)
Use the proper data type for BOOL and bool.
Update Simplified Chinese translation.
{0}
Replace memset with ZeroMemory.
asdf
no need for newline and add missing period