add a nice default prompt
add a nice default prompt

jaspell/baxter_examples,Sannoso/baxter_examples,RethinkRobotics/baxter_tools,umassrobotics/baxter,RethinkRobotics/baxter,baxter-flowers/baxter_tools,RethinkRobotics/baxter_examples,umassrobotics/baxter,davetcoleman/sdk-examples,davetcoleman/sdk-examples,wjchen84/baxter_examples