Merge pull request #6 from tianheyang/master

Netcat function update
note q = moar netcat
note q = moar netcat
moar cats
add http:// to random
another cat.
even moar cats
add x-catgifs header
moarer cats
even moararerest cats
even moararerest cats
even moararerest cats
que?
add a cat.
Merge branch 'master' of github.com:flores/moarcats
Merge branch 'master' of github.com:blovett/moarcats
delete duplicates.
Merge pull request #7 from blovett/master

add some more cats.
report the content length, and the path to the cat being served when
serving random cats.
this is apparently now in the 'fs' module.