Add Copyright file
More information in the README file
Prepared the README file for release 0.9
First version of documentation completed
Extending the documentation
Added some initial documentation of the cgi_potocol module
Correction in cgi_get_session
Apply default initialisation to prevent incorrect checking in column_function
Expanding the test/example program for CGI - correcting a few mistakes
Small changes to CGI module - keep track of header
