Pinged blocks un-ping, Right-click with dye to ping now

Pinged blocks should update after about 1 second and stop showing as
pinged.  Pinging is now done by right-clicking with dye to ping with
that color of wool.  
Still won't ping if you are too close.  

authored by both @g-rocket and @1000000000
Merged stuff

Conflicts:
	src/aor/PingTool/PingToolPlayerListener.java
allows pinging midair now

NOT DONE!!!  when you try to ping midair, it will (if a variable is set)
ping 10 meters away from you in that direction.  However, the midair
ping is just a static final boolean, not configurable in some
configuration file (like it should be).  

attempted to make it be pick block instead of right click, but pick
block is apperantly clientside.  :(
Changed ping back to left click to avoid interfering with bone meal
Merge branch 'master' into command-dev