Adjust travis settings to work around package-lock.json
Adjust travis settings to work around package-lock.json

mk-pmb/node-ecstatic,jfhbrook/node-ecstatic,dotnetCarpenter/node-ecstatic,jfhbrook/node-ecstatic,mk-pmb/node-ecstatic,jfhbrook/node-ecstatic,mk-pmb/node-ecstatic,dotnetCarpenter/node-ecstatic,dotnetCarpenter/node-ecstatic