ConfiguratinoBase moved from commons to commons-module
Added empty interface for description DPU's IO
Unused class BundleObjectInputStream removed
Merge branch 'master' of https://github.com/mff-uk/intlib.git
VirtuosoRdfBrowser
Merge branch 'master' of https://github.com/mff-uk/intlib.git

Conflicts:
	backend/src/main/java/cz/cuni/xrg/intlib/backend/data/DataUnitFactory.java