Fix welcome_fr.mkd to use proper French

Julien Kirch

2014-04-22 c90be0750bff761eb2f74bc16179d1f87304dfa4

 src/test/java/com/gitblit/tests/mock/MemorySettings.java

@@ -48,6 +48,11 @@
   }

   @Override
   public boolean saveSettings() {
      return false;
   }

   @Override
   public boolean saveSettings(Map<String, String> updatedSettings) {
      return false;
   }