Improved autotune instructions.
Added link to autotuning video.
Updated .gitignore file.
MPU6000: Stop driver when fifo overflows

The driver should _never_ lose sync since it cannot recover so
stop sending any data instead of phase shifted data.  There should
be code to recover the driver after this.
Updated autotune instructions.
Update README.md

Replaced Above Ground Labs with Tau Labs.
Merge pull request #200 from TauLabs/kenz/autotune_instructions

Improved autotune instructions.
Merge pull request #219 from TauLabs/kenz/gitignore_update

Updated .gitignore file.
MPU6050: Stop driver when fifo overflows

The driver should _never_ lose sync since it cannot recover so
stop sending any data instead of phase shifted data.  There should
be code to recover the driver after this.
MPU60X0: Use a labeled PIOS_MPU60X0_INT_STATUS_OVERFLOW flag

Crytic unlabeled constants like 0x10 are bad.  Also there was a
flag that was defined but unused and also didn't match the
datasheet (PIOS_MPU60X0_INT_STATUS_FIFO_FULL) so I removed it.
Merge pull request #234 from peabody124/mpu6000_overflow

MPU6000: Stop driver when fifo overflows
Android Tuning: Add RateKd slider

Using a max of 0.001 which should be reasonable from the
values I've heard.

Fixes #248
Android Tuning: Forgot to add load button to tablet layout