v1.2.5

Fixed

• core: if a ./default-env.json file was present and NODE_ENV !== "production", we had assumed that cf env variables
  VCAP_APPLCATION and VCAP_SERVICES are always present in the file. now this is more resilient.

• core: [regression] initialize timing was noticeably slower, because the initial connection check was running with the
  default reconnect strategy that takes 2000ms. now the reconnect strategy is disabled for the initial connection check.