[Makefile] hpp-universal-robot now depends on example-robot-data.
[Makefile] hpp-universal-robot now depends on example-robot-data.

humanoid-path-planner/hpp-doc,jmirabel/hpp-doc,florent-lamiraux/hpp-doc,florent-lamiraux/hpp-doc,jmirabel/hpp-doc,humanoid-path-planner/hpp-doc