Add-ons Limit bots 2.4.0

• Fix XF2.1 support when using "On counting views, skip zero post users" option

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

• Skip counting views for banned users
• Add "zero post users as bots" option (default enabled) (skips counting views for users with no posts)
• Add "Count guests views" option (default enabled)

• Fix installing add-on due to leftover code event listener configuration.