TauLabs/TauLabs — pull request #328 by kubark42 (2013-03-06 11:51:10+00:00)
Title: Group all physical constants into one file

We have gravity redefined tens of times throughout the GCS and flight firmware. I suggest adding a constants file in shared/api.

A short list of constants, feel free to suggest more:

* Gravity = 9.805
* Pi = 3.141529654
* Degrees to radians = pi / 180
* Radians to degrees = 180 / pi