replace with memset
missing stdarg.h include
add update.sh which I use for importing from CVS
cvsimport
Define per-screen groups

This should make Xinerama-aware screens behave independently of each other
when switching groups.
Init and use FIFO for status output

This introduces the ability for CWM to output information down a named FIFO
when status events happen.  Currently, the scope of this is quite limited
but it provides just enough information to be useful.

There is one FIFO per screen defined, which should make separating out
events per screen easier.
Add example status script

This shows how information sent down a FIFO from CWM can be turned in to
something which dzen2 understands.