Resolve "download of source file"

Closes #285 (closed)

rest-api/src/main/java/lcsb/mapviewer/api/projects/ProjectRestImpl.java

@@ -190,6 +190,10 @@ public class ProjectRestImpl extends BaseRestImpl {
     if (project == null) {
       throw new ObjectNotFoundException("Project with given id doesn't exist");
     }
+    if (project.getInputData() != null) {
+      // fetch the data from db
+      project.getInputData().getFileContent();
+    }
     return project.getInputData();
   }