version 3.0.8 tidied up code + minor style and layout tweaks
- removed redundant functions from enrol.php - use session functions within ManageSessions
- change admin-remove log to put details of removed user into "desc", not "removed"
- also, changed log action from admin-remove to admin-unenrol
- cleaned up config file (prettified)
- cleaned up unused/old config values
- add config for logo image
- add config for use-logo-image
- page headings now all same size
- tweaked Audit search to be able to search on regex, not just exact match
- removed ":" when logging details of "admin" and/or "user"
- minor tweaks to the style and layout
version 3.0.9 added -n (dry-run) option to autoopen and autoclose
version 3.0.10 added view/search audit log functionality
Delete old test code