Removed use of \' from raster warning message. Ticket #2383

git-svn-id: http://svn.osgeo.org/postgis/trunk@11689 b70326c6-7e19-0410-871a-916f4a2858ee
Fixed variable datatype in ST_Neighborhood. Ticket #2384

git-svn-id: http://svn.osgeo.org/postgis/trunk@11692 b70326c6-7e19-0410-871a-916f4a2858ee