updated license header

...test/java/teetime/stage/MultipleInstanceOfFilterTest.java

src/test/java/teetime/stage/ObjectProducerTest.java

src/test/java/teetime/stage/RelayTest.java

...java/teetime/stage/basic/distributor/DistributorTest.java

...age/basic/distributor/dynamic/DynamicDistributorTest.java

...eetime/stage/basic/distributor/dynamic/PortContainer.java

...basic/distributor/dynamic/RemovePortActionDelegation.java

...est/java/teetime/stage/basic/merger/MergerSignalTest.java

src/test/java/teetime/stage/basic/merger/MergerTest.java

...st/java/teetime/stage/basic/merger/MergerTestingPipe.java

...teetime/stage/basic/merger/dynamic/DynamicMergerTest.java

src/test/java/teetime/stage/io/File2SeqOfWordsTest.java

src/test/java/teetime/stage/io/PrinterTest.java

src/test/java/teetime/stage/string/ToLowerCaseTest.java

src/test/java/teetime/stage/string/TokenizerTest.java

src/test/java/teetime/testutil/AssertHelper.java