Added sysfs for userspace control under /sys/bus/spi/drivers/imu/spi1.0/
Added sample rate control under sysfs
Added userspace read for kfifo interface under /dev
Now reads raw gyro/accel data into kernel fifo -> userspace
increased spi bus sample speed to 900khz
Merge branch 'master' of https://github.com/BeaglePilot/BeagleBone-Black-MPU6000-Driver