Small defect fixed
New "in your face" Chirp Cow!
Keep _bubble_icon naming convention for icons
(turtlebot_calibration) fix improperly remapped topics
Merge pull request #39 from mikeferguson/master

This makes turtlebot_calibration work again
Set base_frame_id to base_footprint; if not the robot wheels appear a
bit buried!
Updated follower to behave better around feet, crowds, and walls.
Just reorganized; 3dsensor was in the wrong place.
Merge pull request #40 from chadrockey/master

Safer behavior for Turtlebot Follower
2.0.2