0.6.0

454e77c Add PEP249 required type definitions
569babd Unsupported functions raiaes NotSupportedError
f0efe0e Define all DBAPI required errors in prestodb.exceptions
1262f1b Add Cursor#close() and #executemany() required by PEP 249
1ed09e0 Set meaningless 5 items to None in Cursor.description
2caf04b Fix SET SESSION support by using http_response.headers
7c65767 Pass auth module to PrestoRequest for testing auth fail
4ebeb58 Add get_exceptions() to the Authentication module
b022322 Check requests_kerberos availability right before it's used
dfe0240 Make the library runnable w/ and w/o requests_kerberos
25cf54c Enable run tests with full dependency including extras_require
7d48556 Make request_kerberos dependency optional
ef7d571 Use lighter weight six for python3 compatibility
cd986e6 Fix transaction creation
f7358a2 Add need help? section to the README