* we now migrate automaticaly at startup in a thread
 * progressDialog now scroll textvew to the end

prevent the right way bad show to crash us; add comment on special treatment of show is None in *status events

new db design and improved migration script. if you ran before the migration please remove you old logs.db as it is incompatible with the new one and rerun migration if you care about old logs. a print on show is on purpose, bonus of the first to traceback and give us the value of show that causes the tb. yea svn got unstable these days. sorry about that but big changes

fix so we store send stuff in the same place we store recv stuffed. todo: we need one more column in jids table called type_of_msg to store tc or gc and then migration needs fixing. this means people who migrated will have to migrate again by first removing the current log db. this also means until migration script is ready and after the migration u did logs will be lost

initial stuff at mark day that has logs. atm it is slow and has some bugs I will fix soon. I commit this nonetheless

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

history window now has a calendar; tons of cleanups, comments, better varnames and in general better quality of code; also a fixme for another day