[server][DBTablesConfig] Add TLS related columns

Here are added columns:

  * tls_certificate_path:
    * The path of TLS certificate for the client (= Hatohol itself).
  * tls_key_path:
    * The path of private key for the tls_certificate.
  * tls_ca_certificate_path:
    * The path of TLS certificate of CA.
[server][AMQPConnectionInfo] Add accessors for TLS related parameters
[server][DBTablesConfig] Support migrating from DB version 10 or older
[server][AMQPConsumer] Support TLS
Merge pull request #448 from project-hatohol/amqp-support-tls

[HAPI JSON] Support connecting RabbitMQ with TLS