Made sure that extension class loader can also delegate to parent class
loader
Merge branch 'master' of local repository into feature/29-graph-ui

Conflicts:
	core/src/main/java/org/eobjects/datacleaner/user/ExtensionPackage.java
Merge branch 'feature/29-graph-ui' of https://github.com/datacleaner/DataCleaner.git into feature/29-graph-ui