Solve issue #2
Add composeSparqlQuery() and change the const in endpointbase.class.php
Merge pull request #3 from gentryyao/feature_endpoint

Solve issue #2
Merge branch 'develop' of https://github.com/OpenISDM-VR/X2R into develop
Merge branch 'develop' of https://github.com/OpenISDM-VR/X2R into develop
Solve issue #5
Merge pull request #8 from gentryyao/feature_endpoint

Solve issue #5
Merge pull request #9 from OpenISDM-VR/feature_endpoint

+ two feature endpoints