bug in dal.py _select > geoexpand: convert geography as well

[sunny]

geoexpand should expand geography as well.

otherwise geography fields will not be converted to text.

the fix for me was to change the if part in geoexpand (dal.py:1713)

-            if isinstance(field.type,str) and field.type.startswith('geometry') and isinstance(field, Field):

+            if isinstance(field.type,str) and field.type.startswith('geo') and isinstance(field, Field):

[Massimo Di Pierro]

done