updated license header

src/test/java/teetime/framework/ExecutionTest.java

...est/java/teetime/framework/RunnableConsumerStageTest.java

...ime/framework/RunnableConsumerStageTestConfiguration.java

...est/java/teetime/framework/RunnableProducerStageTest.java

src/test/java/teetime/framework/RunnableTestStage.java

src/test/java/teetime/framework/TerminationTest.java

src/test/java/teetime/framework/TraverserTest.java

...est/java/teetime/framework/WaitStrategyConfiguration.java

...st/java/teetime/framework/YieldStrategyConfiguration.java

...me/framework/exceptionHandling/ExceptionHandlingTest.java

...amework/exceptionHandling/ExceptionPassingTestConfig.java

...st/java/teetime/framework/pipe/SingleElementPipeTest.java

src/test/java/teetime/framework/pipe/SpScPipeTest.java

src/test/java/teetime/stage/CipherStageTest.java

src/test/java/teetime/stage/CounterTest.java

src/test/java/teetime/stage/EveryXthStageTest.java

src/test/java/teetime/stage/InitialElementProducerTest.java

src/test/java/teetime/stage/InstanceCounterTest.java

src/test/java/teetime/stage/InstanceOfFilterTest.java

src/test/java/teetime/stage/MappingCounterTest.java