close the connections to metastore when user issues a stop
test changes
get the partitions for dropping which matches the partspec and drop partitions one by one
create db, tables and partitions using hive instance in test hcat util
add a test calss for testing the databus-hcat related methods
Refactor code and check the status of dropping the partitions in purger service
remove hcatclient related from TestHCatUtil and fix NPE in conduit