Multisig synchronization

[Bitcoin]

Multisig synchronization

I understand what the multisig wallets are but I need help understanding what exactly this script does:

https://gist.github.com/gavinandresen/3882537

If I understand correctly, bitcoinds are bitcoin daemons but I'm not sure what daemons should be used in this script and how it all works.

Source: Multisig synchronization