Pass an emoty confOverlay to make sure hiveserver2 does not blow up because of CDH 4.3.0 issue DISTRO-500
Merge pull request #8 from kovyrin/master

Pass an emoty confOverlay to make sure CDH 4.3.0 hiveserver2 does not blow up
Improve error handling in connection closing and fetch operation + add batch fetching method
Added more examples of how to use fetch operations on hiveserver2
Added comments to fetch methods
Merge pull request #9 from kovyrin/hs2-batch-fetching

Add batch fetching method to hiveserver2 API