new printf() is too fucking fast, causing DMA buffer overrun in UART transmit. fixed that. Doesn't affect GCC targets.
got rid of more 16bit ints in new pid controller.

git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@348 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61