add SASL client transport support
fix misprint in an example tcli_connect usage
minor cosmetic changes in openSession request and session
Merge pull request #6 from kolobock/master

HiveServer2 support. Thrift SASL Client transport
Fix up gemspec
Replace present? so that we don't need active_support
Update README
Remove present? so we don't need active_support (again)
Add a Hive2 example
Add utility methods to HiveServer2 connection class
Add create table / drop table example for HiveServer2
Typo in readme