Record positions for /homeback functionality
Fixed incorrect localization string when /homeback without a valid return location
Added permission "teleportgui.warps.back"
Added permission "teleportgui.warps.back.bypass"
Added chat command /warpback and required functionality
Auto accept friends only allows auto accept when players are mutual friends
Added config option "[Friends Plugin] Only shows friends that are mutual friends in player list (slow)". This option is slow and its recommended to avoid enabling it. With the way the friends API works, you are essentially doing a lookup to get all of the players friends, then another lookup for each player on that list to confirm mutual friendship