Fix StringIterator documentation
Automate creation of C comments from autogen headers
Don't hardcode POD and man page headers

Use the supplied autogen header and footer instead.
Add functions to create C API POD
Add function to write custom POD
Add Perl binding for CFCClass_get_parcel
Pass Binding::Perl object to bind_all
Create Clownfish C API POD

Create documentation for all Clownfish classes for now.