fix CI issue
Merge branch 'inverted-index' of https://github.com/KylinOLAP/Kylin into inverted-index
fix CI issue
Merge pull request #213 from qhzhou/inverted-index

Inverted index
Merge pull request #225 from shaofengshi/minicluster

Minicluster
merge with inverted-index
Cleanup unused cube after building cube
Export metadata & cube after running build cube with engine.
Update KylinQueryTest with mini cluster