added default username for new tox datafiles
Merge pull request #68 from Bahkuh/master

Proper naming in format_filesize
Merge pull request #69 from Bahkuh/master

Implemented setting for decimal binary prefix
event based tracking of peers in the groupchat
dropped dependency to libgee. Removed some dead code
fix #75, don't shorten names in groupchats
Merge remote-tracking branch 'upstream/master'