This prevents dangling pointers as the light structures that the pointers in
the state->lights array point to are freed below when cleaning the light maps.

mshtml: Fixed leaks in IHTMLStyleSheet::Release and IHTMLStyleSheetsCollection::Release implementations.

kernel32/tests: Added more shared memory tests, exposing MAP_PRIVATE mapping for read only mapping problem.

The address was already converted to unix in these situations, so it's
wrong to check against windows #defines.

Cocoa will bring an unowned window to the front of its level when it's clicked,
but it doesn't do that for owned windows.  The old code went out of its way to
make owned windows behave like unowned windows in this respect.  That was
exactly backward.  We wish we could control whether windows are raised on a
click.  We don't have that opportunity for unowned windows, but, by ripping
out a bunch of code, we do for owned windows.