Added new compilation flags for warnings and cleaned up code

Makefile

src/main/java/attacktrees/Attack.java

src/main/java/attacktrees/AttackNode.java

src/main/java/automata/Automata.java

src/main/java/avatartranslator/AvatarAction.java

src/main/java/avatartranslator/AvatarActionAssignment.java

src/main/java/avatartranslator/AvatarArithmeticOp.java

src/main/java/avatartranslator/AvatarBlock.java

src/main/java/avatartranslator/AvatarSignal.java

src/main/java/avatartranslator/AvatarSimpleGuardDuo.java

src/main/java/avatartranslator/AvatarSimpleGuardMono.java

src/main/java/avatartranslator/AvatarStateMachine.java

...main/java/avatartranslator/AvatarStateMachineElement.java

src/main/java/avatartranslator/AvatarStateMachineOwner.java

src/main/java/avatartranslator/AvatarTransition.java

src/main/java/avatartranslator/AvatarTranslator.java

src/main/java/avatartranslator/AvatarTuple.java

...tartranslator/directsimulation/AvatarSimulationBlock.java

...nslator/directsimulation/AvatarSimulationInteraction.java

.../directsimulation/AvatarSimulationPendingTransaction.java