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
Update README.md

update the url of travis
Merge branch 'bugfix/statoilWP9' into develop
put gpg plugin into a seprate profile
ignore backup files generated by release plugin
Merge branch 'develop' of github.com:ontop/ontop into develop
Merge branch 'develop' of github.com:ontop/ontop into develop
removed useless brackets in JDBCUtil
fix bug when template is null in R2RMLParser
Merge branch 'develop' of github.com:ontop/ontop into develop
clean a bit
cmd for coverting r2rml
re-throw exceptions
Merge branch 'develop' into feature/r2rml
added break in dummyTable
Merge branch 'develop' of github.com:ontop/ontop into develop