rest -v3.0.2

• remove Restult.toString()
• remove useless output after cursor.query()

V3.0.1

• Fix TMQ commit invalid message. Free Conumse result before "commit" and "Unsubcribe"

rest-v3.0.1

• Fixed using default port of "http","https" (ports like 80,443), cannot connect to TDengine server.
• Remove default port configured in code, Need to configure port like "6041" obviously.

V3.0.0

• support TDengine 3.0
• support TMQ
• Doesn't compatible with TDengine 2.x