#35 added activator concept
Merge branch 'nachtgold-master'

Conflicts:
	plugin/osgi/src/main/resources/META-INF/jqassistant-rules/osgi-bundle.xml
	plugin/osgi/src/test/java/com/buschmais/jqassistant/plugin/osgi/test/OsgiBundleIT.java
#34 fixed package declarations
#35 added concept for internal types and constraint for public internal types
#35 added a constraint for unused internal types
activate debug logs to investigate broken build on CI server