The ME_TextBuffer structure is what is used to store the document (as
a linked list), so the ME_Document structure isn't being used.  There
was also a document pointer in the ME_Paragraph structure that was
also unused, so I removed it because it is probably related to this
used structure.

gdi32/tests: Only test the lowest byte of GdiRealizationInfo flags so that the test passes on Vista.

Ownerdraw status bar should update on receiveing a SB_SETTEXT message,
even if the 'text' parameter has not changed. Fix with conformance
test.

widl: Call Pointer function for freeing non-conformant strings and for all phases for returned non-conformant strings, as is done for conformant strings.

Also call Pointer functions for any string that isn't a reference pointer.

Document how much of hack duplicating a type in order to change its
pointer type is.