Remove Official from Dawn/Dusk mention since that's sun rise/set.
Update git ignore file
Add CLLocation category to the project

- convert from Degrees Minutes Seconds to Decimal Degrees
- convert from Decimal Degrees to Degrees Minutes Seconds
- create a CLLocation from Degrees Minutes Seconds
- add some basic tests
add shared scheme files
moving CLLocation+FESGraticule to it's own project
see https://github.com/danimal/CLLocation-FESCoordinates
make the app exit on suspend