HUE-1188 [beeswax] Support hadoop.rpc.protection set to anything other than "authentication"

Description:

I wrote a quick fix to the issue by hard-coding the QOP used by the Thrift SASL server to "authentication".

Testing Done:

Installed patched jar on a CDH 4.2.0 cluster and beeswax was able to browse tables. It still fails when you run a query due to HIVE-4225.