====== New Features ======
  * Support ASR engine for Chinese
  * Support to use ASR engine to recognize phone call status (power off, busy, invalid etc)
  * When save a customer in campaign, system could post all information to a specific url
  * New information when export customer data
    * last call start time
    * last call end time
    * last call duration
  * In agent detail statistic page, support export job
  * Command line to re-generate and reload all configration
  * A new API for call conference, and it allows for DTMF pass through


====== Bug Fix ======
  * When enable hide contact, in some other module, agent can still see customer phone number
  * Fixed duplicated menu in import page when using different role