* If we have somehow gotten duplicate sessions and we roll over to midnight, we must not rollunder to -4G and record 4G minus the difference in usage as the new session usage. Lets record 0 instead.

* Improved logging

* Modified NAS-Port-Id to use a blank default if not defined (in the case of vpn's)

Use window name on all removes

 webgui/ajax.php                                 |    8 +-
 webgui/include/ajax/functions/AdminUserLogs.php |   80 ++++++++----------------
 webgui/include/ajax/functions/WiSPUserLogs.php  |   80 ++++++++----------------
 webgui/js/app/windows/AdminUserLogs.js          |   11 ++-
 webgui/js/app/windows/WiSPUserLogs.js           |   11 ++-
 webui/user/index.php                            |   68 ++++++++++----------
 webui/user/logs.php                             |   48 ++++++--------
 7 files changed, 131 insertions(+), 175 deletions(-)

 accounting/mod_accounting_sql.pm |   97 ++++++++++++++++++++++++++-------------
 system/mod_config_sql_topups.pm  |   36 +++++++++-----
 2 files changed, 89 insertions(+), 44 deletions(-)

Use ceil while calculating instead of on total

Note: database schema for accounting_summary has been changed

Added group attributes support

Show depleted topups

Fixed incorrect relational operator in topups query

Fixed incorrect uptime display
Added date input validation
NASTransmitRate and NASReceiveRate now display blank if not available