[beeswax] HiveServer2 pass-through LDAP authentication at thrift level

This section:

if conf.use_sasl:
def sasl_factory():
saslc = sasl.Client()
saslc.setAttr("host", str(conf.host))
saslc.setAttr("service", str(conf.kerberos_principal))
if conf.mechanism == 'PLAIN':
LOG.warn("Chris Inside if Conf.Mechanism")
saslc.setAttr("username", str(conf.username))
saslc.setAttr("password", 'hue') # Just a non empty string
saslc.init()
return saslc

Just sends a password of "hue" no matter what.