Revert "alaphabetic order" for groovy

This reverts commit f928765ed08773517c195b74c55231c0e4fcc5e5.
Revert "adding geometry_msgs dependency in package.xml and CMakelist" for groovy

This reverts commit c7ac1155d70269909b55af03d13fe2e089d6215d.
Revert "chaning command_velocity to cmd_vel" for groovy

This reverts commit 96e5174d3a5c961b6e1195b90b4024e2858df010.
reverting velocity -> twist for groovy
0.3.12