Fixed #issue103
At least for now.
Ensuring full compatibility with the Json would require a change to the
interface of GlobeCoordinate.
Be careful, the conversion between long and double might introduce
rounding errors.
Fixed failing test.
When one tests something, that requires nanodegrees, one should provide
nanodegrees :)
Merge pull request #104 from Wikidata/issue_#103

Fixed #issue103