Reordered services and messages to be organized and reflect documentation. No code change
Deprecated -gazebo arg in favor of -sdf tag
Fixed really obvious error checking bug
Merge branch 'groovy-devel' into topics_services
Fixed gazebo includes to be in <gazebo/...> format
Renamed Gazebo model to SDF model, added ability to spawn from online database
Added debug info to shutdown
Created tests for various spawning methods
Combined updateSDFModelPose and updateSDFName, added ability to spawn SDFs from model database, updates SDF version to lastest in parts of code, updated the tests
Merge pull request #15 from osrf/topics_services

Revamped Gazebo Services