update infrastructure versions / added coverage to automatic builds

PLEASE UPGRADE YOUR NODE_MODULES!
removed unnecessary tasks
reducing coverage for travis - there it is lower than locally
reducing coverage for travis - there it is lower than locallyupdate infrastructure versions / added coverage to automatic builds

PLEASE UPGRADE YOUR NODE_MODULES!
Merge pull request #431 from leider/master

reducing coverage for travis - there it is lower than locallyupdate i… …nfrastructure versions / added coverage to automatic builds