Merge pull request #55 from hobbyquaker/master

schema changes
Merge pull request #57 from hobbyquaker/master

added ./iobroker update-repo to fetch adapters io-package.json into db, ...
Merge branch 'master' of https://github.com/ioBroker/ioBroker.nodejs
renamed cmd update-repo to update and update to upgrade
fixed common.children warning
fixed common.children warning