Allow parsing of multiple visual or collision elements#26

Merged

clalancette merged 4 commits intoros:melodic-develfrom cpaxton:melodic-devel

Feb 15, 2018

+43-4

Commits on Dec 6, 2017

Commits on Dec 19, 2017

inertials --> inertial
cpaxton
committed

Commits on Feb 14, 2018

Add tests for mutli-visual and multi-collision
sloretz
committed