return Point coordiantes in more formats as string

[Martin Kolman]

• "12.3,45.6"
• minutes, seconds, etc.
• geohash (take code from the geopy module and add it to the geo module)
• maidenhead locator system (upoints -> geo)

• summary listing
  • one coordinate pair per line
  • separated by newlines
  • usable for direct display in QML and others