OGRFeature wasn't getting destroyed
- made getFirstFeature() a little more robust with regards to handling memory
related errors
- implementation files should include their own headers first, so moved its
#include accordingly to top; the meant creating class forward declarations
in header file.
git-svn-id: http://svn.osgeo.org/qgis/trunk@1105 c8812cc2-4d05-0410-92ff-de0c093fc19c
- isValid() was always returning true when, in fact, occasionally the
provider was not in a valid state
git-svn-id: http://svn.osgeo.org/qgis/trunk@978 c8812cc2-4d05-0410-92ff-de0c093fc19c
