Added a wrapper around QuestOWLFactory to provide error messages in
reasoner initialization in Protege.
Merge branch 'feature/protegeReasonerErrorMessage' into develop
Merge branch 'develop' into feature/r2rml
Fix problem with multiple join conditions
Do not add a mapping without target query
Fix R2rml parser to clear classPredicates
modified test R2rmlChecker
Merge branch 'develop' into feature/r2rml
Merge branch 'feature/r2rml' into develop
add a test for integer and quotes
Merge branch 'develop' into bugfix/OntologyTypesTest

Conflicts:
	quest-test/src/test/java/it/unibz/krdb/odba/R2rmlCheckerTest.java