masterchain-tools has already few roles and forks now:

• It serves as the official mastercoin stack https://github.com/mastercoin-MSC/mastercoin-tools
  
• It serves as the engine behind masterchain.info https://bitcointalk.org/index.php?topic=583370.0;all
  
• It serves as the engine behind omniwallet https://github.com/mastercoin-MSC/omniwallet/