Cleaned up data and uptime calculation

 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(-)

Use ceil while calculating instead of on total

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

Fixed incorrect row name when fetching terminate cause

Cleanup

Commented code not used

Total additional topups not including current topup being used

Show searched dates in date fields

* Allow no operator to be selected to keep previous one

Adding users still needs work

Better error handling: still needs fixing

Minor cosmetic changes