using HCatUtil.getHiveClient to get HiveMetaStoreClient which handles caching with expiry
jms messahe handling changes
update/add/delete partition
setting last access time in alter partition
setting last access time for partition
Merge pull request #12 from shwethags/develop

jms message handling
Merge pull request #14 from InMobi/develop

Reverse merge from develop to 4.0.1