Talker

Added
- Running diagnostics on startup and when uncaught exception occurs

Fixed
- fix dict items iteration bug happening in python3

Added
- Redis connection parameters in agent config file

Changed
- raise client's Redis socket timeout
- using .ini file for agent configuration

Fixed
- fix reactor ASYNC_COMMANDS memory leak
- fix missing *wait* in polling completed commands
- fix redis.exceptions.ConnectionError:<br/>
Error while reading from socket: (104, 'Connection reset by peer')

Changed
- upgrade Redis client version to 3.3.7
- change agent installation script to allow remote installation

Fixed
- fix get process ID race
- fix talker termination when trying to kill an existed process

Added
- fix installation via pypi