Can now whitelist users by github pubkeys.
Fixed issues reported by golint.
Updated help text for /whitelist
Added comments and better variable names in getGithubPubKeys.
Made whitelisting user async.
Fix crash bug.
Merge branch 'master' of https://github.com/shazow/ssh-chat
Added timeout to github pubkey request.
Removed regex, added timeout.
Split up whitelist func, made identity url get safer.
Fixed issues found by golint.
Using bufio instead of ioutil.
Merge pull request #72 from empathetic-alligator/master

Can now whitelist users by github pubkeys.
Nil pointer crash fix.
Fix literal referenc.
Disable no keypair login.
Fix motd, invalid fingerprint, no auth whitelist.