added super call to classes which override onTerminating

src/main/java/teetime/framework/HeadPipeline.java

src/main/java/teetime/framework/Pipeline.java

src/main/java/teetime/stage/Cache.java

src/main/java/teetime/stage/CollectorSink.java

src/main/java/teetime/stage/basic/Delay.java

...ain/java/teetime/stage/basic/distributor/Distributor.java

src/main/java/teetime/stage/basic/merger/Merger.java

src/main/java/teetime/stage/kieker/Dir2RecordsFilter.java

...in/java/teetime/stage/kieker/DirWithBin2RecordFilter.java

...in/java/teetime/stage/kieker/DirWithDat2RecordFilter.java

src/main/java/teetime/stage/kieker/TCPReaderSink.java

...etime/stage/kieker/fileToRecord/DatFile2RecordFilter.java

...kieker/traceReconstruction/TraceReconstructionFilter.java

...ime/stage/kieker/traceReduction/TraceReductionFilter.java