Merge branch 'valid_port_name' into 'master'

src/main/java/tmltranslator/TMLSyntaxChecking.java

src/main/java/ui/TAttribute.java

src/main/java/ui/tmlcompd/TMLCPrimitivePort.java

src/main/java/ui/tmlcompd/TMLComponentTaskDiagramPanel.java

ttool/src/test/java/ui/tmlcompd/TMLCPrimitivePortTest.java

ttool/src/test/resources/ui/tmlcompd/input/TestPortName.xml