[PATCH 0/15] Modifier fixups (especially for nested)

[Daniel Stone]

Hi,
The following series makes nested compositors in particular track their
parent server's state more aggressively.  The main highlight is probably
that the stuck modifiers bug under X11 should be completely gone, as
well as enabling key bindings under GNOME Shell and other compositors
that grab modifiers.

The X11 integration works best if you have a fixed XCB, i.e. xcbproto
and libxcb from git from today, with XKB explicitly enabled.  However,
I've done what I could for the non-XKB case and it seems to work just
fine.

Cheers,
Daniel