jms message handling

1. not ignoring exceptions while sending messages
2. Sends 1 message to falcon system topic and 1 to user entity topic for both feed and process
3. Handing drop partition in hcat for DELETE operation
4. Removed caching on HCatClient as it creates issues during hcat restarts
If path doesn't exist, do we register an empty partition or not register anything ? Would there be any gaps on account of this ?