update repository list to use conveyal repo instead of opengeo

OpenGeo was moved to boundless spatial domain and some artifacts removed

Conflicts:
	pom.xml
Merge pull request #1537 from buma/fixRepository0.11.x

update repository list to use conveyal repo instead of opengeo for branch 0.11.x
Merge branch '0.11.x' of https://github.com/opentripplanner/OpenTripPlanner into 0.11.x
è stato aggiornato il pom.xml con alcune librerie non più disponibili sui repository originali