Warping: fix regression with lanczos resampling when yradius > xradius (#5058)

git-svn-id: https://svn.osgeo.org/gdal/branches/1.10@25935 f0d54148-0727-0410-94bb-9a71ac55c965
update release date

git-svn-id: https://svn.osgeo.org/gdal/branches/1.10@25936 f0d54148-0727-0410-94bb-9a71ac55c965