Dependencies versions: 1. co upgrade to 4.0 2. fivebeans extactly to 1.1.1 3. koa to latest version: 0.13
Dependencies versions:
1. co upgrade to 4.0
2. fivebeans extactly to 1.1.1
3. koa to latest version: 0.13

schatt/bell.js,schatt/bell.js,schatt/bell.js