Added a test for equivalence of positive and negative 180 deg in distances
Added a test for equivalence of positive and negative 180 deg in distances

git-svn-id: 4df7ec159d6f34d4a1fbec6b67bab684fedd02d9@71 535ce8a4-231d-0410-ac7f-15f3cd728b52

JonathanRRogers/geopy