This makes SPI_GETUIEFFECTS return TRUE by default.

Calculating an open-ended structure using sizeof doesn't yield an 
accurate size because of alignment.

comctl32: In certain circumstances, native comctl32's animation control accepts negative start positions for the ACM_PLAY message.

These circumstances seems to be after a seek is performed, but we play
it safe and allow negative start positions to be treated as zero always.

widl: Don't search for a import file name with a path in the include directories for compatibility with MIDL.

It's no longer a stub DLL.

include/wintrust.h: Add missing members to CRYPT_PROVIDER_DATA struct (fixes some wintrust tests on Windows).

winedump: Switch the block dumping code to be block-oriented, rather then flag oriented, so it is resilient to order changes.