[Catalyst] An initial version of a form rendering and validation module

Given that the module works with Catalyst I am making a first
announcement of version 0.04 here. The source code is available from:

http://andrew-ford.com/perl/cgi-formmanager/

This is what our form definition might look like:

my $form_defn = {
options => { method => 'POST',
action => $url,
},
elements => [ '<h2>Your login credentials</h2>',
cfm_text_field( name => 'email',
label => 'Email address',
...

],
validation => { required => [ qw(email password) ],
constraint_methods => {
email => email(),
},
},
};