xF2 Add-on User Activity by Xon 2.13.4

• add icon
• Bugfix content rating support

• Adjust CSS for container header to better work with multiple styles. Thanks @Russ

This add-on appears to have no compatibility issues with XF2.1

• Fix detection of robot vs guest when inspecting session

• Add "On-hover - show last seen date" style property option
• Display the user activity list when there are no visible users by counted users

• Support for Conversation Essentials for XF2

• Actually increment the version id so XenForo prompts to run the upgrade process.

• Tweak New Thread/Post widget support to reduce queries for node-level permissions
• Remove deprecated array_column wrapper usage
• Update installer to use shared code

• Fix sub-forums in forums would not show viewer counts
• Fix sub-categories in categories would not show viewer counts

• Fix 'Too few arguments to function' error which can occur with php 7.2