• Added option to let protections expire if a player doesn't log in for a certain amount of time
• Added option to let creepers, endermans, fire, ghasts, pistons, saplings, TNT and/or zombies destroy protections
• Protections missing the [Private] sign, but still having a [More Users] sign, are now considered unprotected
• Fixed one half of double chests from Minecraft 1.7 not being protected in some cases
• Fixed an error (NullPointerException) when a line on a sign is null.

This file should work on Spigot 1.8.0, Spigot 1.10 and all versions in between.