rifiuti: Fix inclusion errors. Fix source URL.

This makes 'rifiuti.c' include <string.h> and <stdlib.h>. This also adds
a working source URL. The old one was dead.
Add 'ruby-terminal-table'.
Add 'ruby-sinatra-contrib'.
Add 'ruby-rb-readline'.
rifiuti: Add the includes patch.

This should have been added in commit 50203b18f54bf4c58ce2.
gitignore: Add gem files.
Add research sources.
Add research openvas and possibilities.
Merge 'openvas' into 'possibilities'.
TODO: Add a few small items.
Add 'ruby-ffi-1.2'.

This package/version is required by arachni.
Add 'arachni-rpc'.
Add 'arachni-rpc-em'.
ruby-terminal-table: Add info file.
ruby-sinatra-contrib: Add info file.
kali-menu/found-check: Remove some items.
Add 'cflow'.