Re: End of headers hook

[Jared Johnson]

And voila. Hook renamed to data_headers_end, documentation in
README.plugins with a BIG warning.

Just a thought -- perhaps the methodology for throwing away further 
input as cleverly described by Jose Martinez should be thrown around and 
tested and then documented in README.plugins together with suggestions 
for adding an appropriate transaction note and doing the real denying in 
hook_data_post?

-Jared