version 3.0.1 Added Audit(log) Class
- added function to Sessions Class: describeSession()
- added function logAudit, which adds custom fields and then passes to Audit Logger
  (goal here is to strip customisation of Logger - Logger was trying to add custom
  information, but the calls to get that info were themselves logging...)
- put stand-alone utility functions into toolbox.php
version 3.0.2 minor fixes
- removed customisations from Logger Class
- switched logInfo to logDebug for a number of calls
- reenabled debug_backtrace
- fixed modal display not showing up during auth attempt
- minor bugfixes
version 3.0.3 fixed IE7/IE8 button issue
version 3.0.4 fixed IE7/IE8 login issue
version 3.0.5 fixed IE7 admin mode button issue
	- answer: update readme to say it doesn't work in IE7
version 3.0.6 bugfix. logged session details included date not time!
fixed data_sample wrt logging changes