This is an 'Links' project.
Started 28/9/97

CGI which webmasters will use to register their Name, email and URL
    and page name where the link will be located.

Check from time to time if our link is still on their page and update
    the data base  with a flag

Option to Email to 1. All
             2. Only who have the link
             3. Only who do not have the link

Generate dynamicaly an HTML with a list of all URLS that have
    our link on.


3.10.97
        * Finished the first version of the script
        * I was using two dbm files: one for email->Name mapping and the other for email->URL
        * Simple Lock file routines has been added (I believe it's sufficient for a light load)
        * The following routines has been implemented:
           sub user_input -- Get user's email, name and url. Validate them and store if valid
           sub print_records -- this routine will print all the records
           sub print_all_urls -- this routine will print all the records with url hyperlinked
           sub print_email_form -- this routine will print email form to be submitted
           sub email_users -- this one actually sends email 
           sub run_periodic_check -- this one runs a check for the whole db in the background 
               (child process) and the results are being send to the $admin_email
        * ChekURL.pm -- perl5 module has been written -- It Checks whether a document at URL 
               'A' includes an URL to document 'B' (based on LWP.pm)
