Add option to completely disable pistons in faction territory.

This is a preemptive method to block new things like http://i.gyazo.com/6a1a31222e58a5d60ff341c13f6a8404.gif

src/main/resources/config.yml

@@ -23,6 +23,11 @@ findfactionsexploit:
 # What should be the max amount of warps that a Factoin can set?
 max-warps: 5
 
+# Pistons
+# Should we disable pistons in Faction territory? This will prevent people from doing something like:
+# http://i.gyazo.com/6a1a31222e58a5d60ff341c13f6a8404.gif
+disable-pistons-in-territory: false
+
 # Configuration section for Scoreboards
 # This will allow you to completely customize how your scoreboards look.
 # Make sure that no lines are duplicates of each other otherwise only the first will display.