Overhaul statistics files
*/dsts.dab (daily statistics and running totals) -> */dsts.ini */csts.dab (cumulative statistics / log) -> */csts.tab * dsts.ini now has both daily and total stats for all fields (not just timeon and logons). * dsts.ini is now an easily modifiable text file - no longer need dstsedit (here-by deprecated and soon to be deleted) * dsts.ini and csts.tab support 64-bit upload/download byte stats and are very extensible for future fields to be added or extended > 32-bit (this was the main inspiration for this overhaul, but it was overdue and already designed for v4, pretty much) * csts.tab is a tab-delimited fixed length record format suitable for easy import to a spreadsheet program or parsing with scripts. Each day is a 128-character LF-delimited record with tab-delimited fields of plain ASCII text. * All fields except timeon in dsts.ini files are updated immediately and by more non-terminal servers (e.g. post statistics from web UI scripts). * New user stats are tracked more than j...