Improve list output

- Sort by provider and feed name (#3)
- Add header and footer)
- Output total number of feeds
- Include feed type and link
Fix 'lines' handling in specs.
Merge pull request #14 from justfalter/improve_list_output

Improve list output
Adding Arbor Fastflux feed
Adding ET compromised iprep feed
Arbor SSH feed
Add blocklist_de_apache feed
Add blocklist_de bots feed
Adding blockist.de ftp feed
Add blocklist.de imap feed
Add blocklist.de pop3 feed
Add blocklist.de proftpd feed
Add blocklist.de sip feed
Add blocklist.de ssh feed
Add blocklist.de strongips feed
Add ciarmy iprep feed
Add cruzit iprep feed
Add dan.me.uk tor node feed
Add feodo domain feed
Add feodo iprep feed