[AUCTeX] Changes in font locking

[Ralf Angeli]

Hi,

I checked in some updates regarding font locking.  It should now be
able to cope better with unfinished constructs and makes you aware of
them by highlighting their start with a prominent color.  It also
gives you hints in this way for macros with a wrong number or sequence
of arguments.  In XEmacs multline constructs are now highlighted
correctly.

The changes are quite extensive and need some testing.  So please grab
a copy from CVS, give it a thorough beating, and report any bugs you
may find.

-- 
Ralf