[#31401] Fixed issue with  object being overwritten by string. (Fix #1446)
[#31319] registration option disabled by default is safer. Thanks Brian
Teeman.
[#31205] Automatically set $db and $app properties on plugins. Thanks
Don Gilbert.
# [#30677] Need to update the readme files. Thanks David Hurley.
# [#31428] 3.1.2 backend menus don't react like previous version. Thanks
Jérôme Glatigny.