MPU9150 On Hydro

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I haven't used it personally, but you should be able to check out the bb_mpu9150 package from github https://github.com/vmayoral/bb_mpu9150 and build it on Ubuntu with Hydro.

Note that that node is publishing the IMU information as a std_msgs/String instead of as a sensor_msgs/Imu message; you'll probably need to upgrade it to sensor_msgs/Imu if you want to use it with other ROS nodes that make use of IMU data.