EnityToDensity, fix typo (import -> include)

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2292 5a81b35b-ba03-0410-adc8-b2c5c5119f08

modules/mol/alg/src/entity_to_density.hh

 #ifndef OST_ENTITY_TO_DENSITY_HH
 #define OST_ENTITY_TO_DENSITY_HH
 
-#import <ost/mol/entity_view.hh>
-#import <ost/img/map.hh>
+#include <ost/mol/entity_view.hh>
+#include <ost/img/map.hh>
 
 #include <ost/mol/alg/module_config.hh>