Pull request TeleSign#3: Added track to request

Merge in SDK/java_telesign from feature/EOA-2064-SS to developer

* commit 'd51ed47420fa9d7c0c159053fda5bc45fa7da604':
  Uptade version Add new paremeters constructors Update unit test code Update Restclient class in contructor method

Added support for request bodies with application/json content type.

Refactor travis-ci so it only build coverage from openjdk8

Bump version to 2.2.4

Remove debug logs

Publishing 2.2.2 jar file

Added support for application/json content-type

AutoVerify rebranded to AppVerify, refactored associated names.

Fixed date localization issue for rfc2616 http date header, it will n…

…ow be fixed to Locale.US.

Added codecov badge to README.