setupapi: The inf file containing the SourceDisksFiles and SourceDisksNames sections is the same as hinf if there is no layout file specified.

So pass the correct inf handle to SetupQueueDefaultCopyW and SetupQueueCopySectionW.

hhctrl.ocx: Update HtmlHelp and its commands definitions, and partially implement data A->W translation.

The TEXT_TabbedTextOut didn't set correctly the text starting point
(x0) for left-aligned tabs and was ignoring the last tab. I've also
changed GetTextMetricsA to W as this should be slightly faster.

The previous mixer code depended on the existence of 1 'Master', and 1
'Capture' control. According to some feedback in wine-devel this is not
always the case, the new code will try the following order for loading:
Destination waveout: Master, Headphone PCM
Destination wavein: Capture

ole32: Remove an unnecessary QueryInterface in CoRegisterClassObject that CoMarshalInterface will already do.

setupapi: SetupCopyOEMInfW should preserve the basename when copying the inf file to the inf directory if possible.

If the file already exists, then it should use a name with the form oem%u.inf instead.

riched20: Add the tests for EM_SETTEXTEX/EM_GETTEXTEX in addition to WM_SETTEXT/WM_GETTEXT, make them pass under Wine.