Added support for "Sessions".
All user jsp pages updated to include check for usertype. If no user
type then redirects back to login.
Sys admin can access all user pages manually. No other user can access
each others pages. Check will redirect user back to their home page.
The logout button redirects back to login. 
The login page calls a script that removes the User from local storage
and so then the user cant access any page.
Added userConf.js - This has the check scripts.