Add check to prevent online guests query before upgrade script is run

Update pre release 6 update file

Fix page descriptions not always working

Release version 1.0.21

Add update files + release v1.0.21

Release 1.0.20 update files

Update changelog, readme, update file + installer for 1.0.20

Remove log function from API

Remove log function from API

Release version 1.0.19

Add update files and update installer for v1.0.19

Add update files and update installer for 1.0.18

Add update files and update installer for v1.0.18

Update Japanese translation

Update Japanese translation, thanks to SimplyRin

Update route check

Update route check in core and forum module init files