CAMEL-6835 CamelBlueprintTestSupport should provide option of not generating test bundle

Conflicts:

	components/camel-test-blueprint/src/main/java/org/apache/camel/test/blueprint/CamelBlueprintTestSupport.java
CAMEL-6834 camel-restlet supports to send the Representation object back
CAMEL-6835 Polish the javadoc of CamelBlueprintTestSupport as Claus suggested