Remove from map photos with GPS Latitude/Longitude null

[adripo]

I have some photos on map at 0N,0W. I checked with ExifTool and found out that the GPS fields are present but have null values. I think this issue might be related to #671.

Can those with null values be excluded from the map?

Screenshots:

[tacruc]

I had a brief look into the code. I think what is happing is that somewhere when saving stuff to the DB or reading form the DB null is converted to 0.

[tacruc]

Should be fixed by #811.