new db design and improved migration script. if you ran before the migration...

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