fixed missing utf-8 encoding of 4 race committee app servlets

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/impl/rc/CourseJsonExportServlet.java

@@ -87,7 +87,7 @@ public class CourseJsonExportServlet extends AbstractJsonHttpServlet {
             result = new JSONObject();
         }
         
+        setJsonResponseHeader(response);
         result.writeJSONString(response.getWriter());
-        response.setContentType("application/json");
     }
 }

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/impl/rc/MarkPositionsJsonExportServlet.java

@@ -98,8 +98,8 @@ public class MarkPositionsJsonExportServlet extends AbstractJsonHttpServlet {
             }
         }
         
+        setJsonResponseHeader(response);
         result.writeJSONString(response.getWriter());
-        response.setContentType("application/json");
     }
 
     @SuppressWarnings("unused") //unused since course area has no position yet

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/impl/rc/MarksJsonExportServlet.java

@@ -80,8 +80,8 @@ public class MarksJsonExportServlet extends AbstractJsonHttpServlet {
             }
         }
         
+        setJsonResponseHeader(response);
         result.writeJSONString(response.getWriter());
-        response.setContentType("application/json");
     }
     
     private UUID toUUID(String value) {

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/impl/rc/RaceGroupJsonExportServlet.java

@@ -78,8 +78,8 @@ public class RaceGroupJsonExportServlet extends AbstractJsonHttpServlet {
             }
         }
 
+        setJsonResponseHeader(response);
         result.writeJSONString(response.getWriter());
-        response.setContentType("application/json");
     }
 
     private UUID toUUID(String value) {