Enable input filtering on input capture timers.
make flipping the quad safe with althold engaged

this should stop the copter from accelerating downwards, when upside
down with althold enabled.
Merge pull request #101 from luggi/althold-flipable

make flipping the quad safe with althold engaged
When FEATURE_FAILSAFE is not enabled, always read the channels from the
s.bus rx (otherwise rx failsafe will not work)
format code properly
match the comment from pullrequest about spacing
remains : some hand alignment for comment and wrong /** */ usage.
Merge pull request #106 from treymarc/format2

format code properly
check data returned from rcReadRawFunc() for being valid
moved BMP085/BMP180 init before MS5611 - reports of calibration data inside BMP180 passing MS5611 PROM CRC could trigger false detection
building current hex
Merge pull request #102 from fnurgel/fnurgel/sbus_rx_failsafe_enable

Use rx failsafe when baseflight failsafe is not enabled for s.bus
Merge pull request #95 from kh4/master

Enable input filtering on input capture timers.
correcting flash size in linker script, explaining what the last 2k are used for, and correcting F103 part number
added fail check in hardware i2c driver. this doesn't solve the fact that it sucks. needs to be rewritten w/o IRQ
Enable software and disable hardware I2C driver.
Software one has been tested and works, hardware causes issues with new PWM code.