Moving away from the idea of multiple user levels, users will either
have full access or no access
Swapped all userLevel session vars to a loggedIn var, which is a bool
Makes things simpler and paves the way towards the new login screen
(before you see any files, code etc)
All server variables such as codeMirrorDir, visibleTabs etc now in
$ICEcoder array
This is so we have a single object to contain all settings, just like
the JS equivalent
Return false on context menu
Show dir size if it's a dir
Hiding read/write info and absolute path if not logged in
Clarified by renaming relative path & absolute path
Permisions table to show checkboxes according to value
Input field & checkboxes linked, perm value established on changing
value
Simple validation carried out before you can submit
Submit calls the chmod function which starts the process of change
