add clas
update documents regarding the licenses and clas
Update CONTRIBUTING.md
Merge tag 'v1.11'

[maven-release-plugin]  copy for tag v1.11
comment out gpg plugin
Merge branch 'develop' into feature/jsqlParser
changing mapping analyzer  and obda data factory to support cast
small changes
add r2rml api dependencies
Merge branch 'develop' into feature/r2rml
r2rml api needs owlapi 3.5.0
pretty r2rml output
Update README.md

update the url of travis
extract namespaces
whitelist adp driver
ADPDemo
adp test case
update test
update jdbc url
fix the mapping