Now that the desktop can be owned by a thread we need to explicitly
check for it in the thread attach check.

Allow inheriting of table cell definitions from a previous table row
when the current table row does not contain a \trowd, only an \intbl.

Fix two clipboard problems that caused BadAtom crashes and caused some
clipboard formats to not be exported properly.

Pixel shaders don't have an address register, this warning is bogus.
D3DSPR_ADDR is interpreted as D3DSPR_TEXTURE for pixel shaders.

Make sure, when copying handles from std ones (when no io info is
inherited from parent) to create inheritable handles (spotted by
qingdao daoo).

Also pass the real start of the file to the dump functions, instead of
having the generic code care about the specifics of the individual
file formats.

function DOSDEV_SetupDevice().