Merge pull request #729 from voylin/master

Including *.json files to fix #725

.github/dist/export_presets.cfg

@@ -5,7 +5,7 @@ platform="HTML5"
 runnable=true
 custom_features=""
 export_filter="all_resources"
-include_filter=""
+include_filter="*.json"
 exclude_filter=""
 export_path=""
 script_export_mode=1