PiOS MPU9150: fix inappropriate use of xQueueSendToBackISR
Sparky: update USB information
Revert "EntireFlash: the tr '\000' '\377' doubles the size of the padding"

This reverts commit ab75c6251986a3dd2044580d1b300e01d0470dac.
Sparky: include mpu9150 instead of mpu6050
Sparky: support for mavlink bridge