When a new project is created, default to setting the metadata

author to the current logged on user name

Author: nyalldawson

src/core/qgsproject.cpp

@@ -511,6 +511,7 @@ void QgsProject::clear()
   mCustomVariables.clear();
   mMetadata = QgsProjectMetadata();
   mMetadata.setCreationDateTime( QDateTime::currentDateTime() );
+  mMetadata.setAuthor( QgsApplication::userFullName() );
   emit metadataChanged();
 
   QgsCoordinateTransformContext context;