LLMNR poisoning module and other fixes
* src/modules/poison/__init__.py
  src/modules/poison/llmnr.py
  -- Added an LLMNR poisoning module
* src/modules/poison/dns.py
  -- switched over to log_msg
* src/modules/poison/nbns.py
  -- Removed the local dump var and removed
     the local view and thread handler
* src/modules/poison/poison.py
  -- Fixed a bug with a failed method call