Added MLTask to run/schedule ML training and evaluation workflow
Merge branch 'develop' into ml-examples
Ignore exception if example table already created
Added verification for repeat runs of same task
fix test failure in TestMetastoreService
Fix NPE in stop() when init() fails
Merge pull request #170 from InMobi/svc_stop_npe

Fix NPE in stop() when init() fails
redundant confs removed
Merge pull request #172 from prongs/merge_db

redundant confs removed
Fixed errors when shutting down server in case of failed init
adding min and max for cube measures
Merge pull request #173 from InMobi/svc_stop_npe

Fixed errors when shutting down server in case of failed init
test cases modified to include max and min
documentation fix
Merge pull request #175 from prongs/doc_fix

documentation fix
addProperty calls added
Merge pull request #174 from prongs/cube_measure_attrs

adding min and max for cube measures
1. Removed setter for session handle in LensConnection
2. Removed unnecessary config from lens-server's test site.xml
Merge pull request #165 from InMobi/ml-examples

MLTask workflow for combined training & evaluation
Merge branch 'develop' of https://github.com/InMobi/grill into feature/GRILL-653