Upgrate building version.
Deprecate plugins.sbt.
Fixed deprecated warning.
Add more scalac options.
Verify agent classloader.

  Add and update copy right;
  Set javac target option compatibility with jdk6;
  Comment some code for verification.
Refactor Duck to Cameron.
Customize class loader to remove classes loaded by attaching.
Remove non-direct dependency.
Connected with IOManager.
Shutdown actor system if attach error.
Refactor classes names.
Remove IPhone4s.
Update akka to 2.1.0.
Clean code.
Introduce iPhone.
Introduce Hangup.
Done commuication.
Clean code.
Clean code.
Clean code.