automake based instalation

Support for notify-python so if notification-daemon is not available, we still can show cool popups. FIXES #1901

log system rewrite to use sqlite database instead of plain ascii files. this allows us to scale better (be faster), provide search in history, and save logs for JIDs that are non-ASCII. PLEASE read http://trac.gajim.org/wiki/MigrateLogToDot9DB

 * src/disco.py contains all the disco stuff
 * registration remains in src/config.py
 * data/pixmaps/agents contains the icons used in the toplevel server browser
   and the banner. They're referenced at the top of src/disco.py.

.8 does not run in pygtk2.4 but 2.5+ [we use signals that are 2.6 only, we use stocks that are 2.6. and no deve runs 2.4 all the time so we should not lie :)