Create compute_AP_stats.user.js

Plugin calculates the total potential AP based on what is currently rendered in the map (leaflet objects)
fix text wrapping style issues in player tracker (fixes #212)
Merge remote-tracking branch 'blake-ingress/patch-1' into framed_ap_stats_plugin
updated to comply with code review comments from breunigs
Merge pull request #1 from framed/framed_ap_stats_plugin

ap stats plugin - code review tweaks