Added four folders to the main directories INCLUDE and SRC:
 - lua
   Intended to create behaviors using Lua script language.
 - clips
   Intended to create an "inteligent" arbiter using CLIPS expert system.
 - soar
   Same as clips but using Soar cognitive architecture.
 - xBehaviors
   This folder was originally in the examples folder, but we've been
   extensively using it so it was better to include it in the framework.