Integrate web socket messaging with the [current] messaging mechanism

[andreiolaru-ro]

• [x] fetch & pull
• [x] solve todos
  • register the messaging component of the agent with the platform when having a platform link
  • from the platform, call a method in the messaging component when a message is received
  • this method calls receiveMessage in MessagingComponent
• [x] refactor communication package name -> websocket
• [x] refactor general platform name -> WEBSOCKET
• [x] merge /master-a into /cosmin and use the new MessagingComponent and methods offered by AgentComponent
  • see the use of
  • makePath, makeInternalPath, makeLocalPath
  • AgentComponent: use atAgentStart, maybe atAgentStop
  • see paper, section IV.C

[andreiolaru-ro]

• [x] package main.java.org.java_websocket into a jar and put it in the classpath.
• [x] document and fix errors and workings in communication package

[andreiolaru-ro]

Fixed in da15315bf8f699b5397fad80e5af90e2a0d7237a, 9597ac77104666eecf746fd44c391dd04a3d3b94, 380fb4e94eca75cc987a74adfbb26d0ad7e7c718, aa1c1a1ace5fc5bc77e5be544ce6a04f5261e53f