Added more comments and assertions to tty.cxx.
Renames: s/Exited/Reaped/ s/exitCode/status/
Close the PTY when we get a read error (so we don't keep reading it).
Don't bother with atom ESETROOT_PMAP_ID.
Pseudo transparency: draw borders correctly.
Pseudo transparency: respond to root pixmap changes.
Fix leak (on error) in Basics::determineMasks.
Cleanup: use uint8_t instead of int for bit index.
Don't ERROR on zero X11 response.
Properly receive visibility notify events.
And remove visibility event stuff.