restored description deletion when disabling user account
admin info about cache-history recording
added email bounces processing, fixes #44
changed search resuls headline if not called by search function; fixes #211
added function to encode username for URL (commented regex) and function to convert chars not allowed in IRC nicknames before
encoding it, updates #209
improved bounces handling; added AOL hack; updates #44
sorted help pages
Merge remote-tracking branch 'bohrsty/209_escape_username_in_chat'
optimized webchat nick translation; fixes #209
refined email bounce processing; update #44
#78: GPX version inconsistency
added cache auto-archiving; update #90, update #67
autoarchive: fixed original log text format
Merge remote-tracking branch 'christian-m/78_gpx_version_inconsistency'; update #78