0.3.1.0

• Added ECEF position
• Added Frames (Body, Local, North East Down)
• Added delta and target from position(s), frame and earth model
• Added earth models (WGS84, WGS72, GRS80 and derived spherical models)
• Builds against LTS 12.2 (GHC 8.4.3) and LTS 11.18 (GHC 8.2.2)

0.2.0.0

• GeoPos -> LatLong
• Split Position from GreatCircle
• require base >= 4.9

0.1.0.0

• Initial version