2 - property proxy in compount elements.
4 - implement events in plugins.
5 - app must be able to catch events?
7 - propagation of errors in plugins.
8 - deal with clocking issues
9 - use real chaining where possible
14 - SDL : seems to be ok now, test
15 - rtp : weird problem, can't get it to work with AC_CHECK_HEADER(S)
16 - arts : rh72 has artsflowh. in /usr/include/kde/arts
17 there's no arts-config
18 so what do we do to find it ?