Added compatibility of the forum version 2.2.6 and higher. The addon now works on both 2.2.* and 2.3.* The gifsicle utility installation check is enabled. Verification is also enabled on a server running the Windows operating system.
New addon settings have been added: in the attachment block in the message, play the animation of GIF images. This can be disabled on slow servers. Added the ability to remove a notification about a missing gifsicle if the utility is installed, but the addon still shows the notification, possibly with incorrect verification.
