do not need source.properties as input
skiip the RMLEngine filemap
file is read from the triple map and passed to processor
file is read from the parent triples map and passed to processor
added system prints
Merge branch 'master' of git.mmlab.be:rml/rmlprocessor
no input files but load input files based on the mapping document
Merge conflict
completely removed reading identifier at execute of the processor
checks if the node contains a value or a child element
single function that handles GraphMaps from both subjectMap and PredicateObjectMaps
different changes
more than one children for a Join Condition as more than once the object expression can fit
Merge branch 'development' of git.mmlab.be:rml/rmlprocessor into development

Conflicts:
	src/main/java/be/ugent/mmlab/rml/processor/concrete/JSONPathProcessor.java
fixed example 6
added more namespaces and trim the extracted values
just comments
added simple referencing object map
handling referencing object map
skipped snapshot from db2triples