clean up

tools.descartes.pmx.builder/META-INF/MANIFEST.MF

...uilder/src/tools/descartes/pmx/builder/IModelBuilder.java

...builder/src/tools/descartes/pmx/builder/ModelBuilder.java

...mx.builder/src/tools/descartes/pmx/util/ExternalCall.java

...builder/src/tools/descartes/pmx/util/FilterPortTuple.java

...cartes.pmx.builder/src/tools/descartes/pmx/util/Util.java

tools.descartes.pmx/META-INF/MANIFEST.MF

...rc/tools/descartes/pmx/filter/PerformanceModelFilter.java

.../descartes/pmx/filter/PerformanceModelFilterAppender.java

...tes/pmx/filter/controlflow/ControlFlowFilterAppender.java

...tools/descartes/pmx/filter/usage/UsageFilterAppender.java

...tools/descartes/pmx/filter/util/KiekerFilterAppender.java