Please implement users with the xpkeepr.admin permission node to be able to destroy other player's XPKeeper signs. The issue currently is as follows:

Prerequisites:

1. Set up a Minecraft Spigot 1.8.7 server with PermissionsEX, XPKeeper and Worldedit
2. Have a default player, with the xpkeeper.use permission node
3. Have another player as an Op.

Steps:

1. The default player creates an XPKeeper sign.
2. The Op types /xpkforceremove
3. The Op removes the XPKeeper sign of the default player using Worldedit
4. The default player attempts to create a new XPKeeper sign, but cannot because XPKeeper says the player can only have one sign.

Suggested Resolution:
When the Op types /xpkforceremove , prompt the Op to click the XPKeeper sign to be removed from the world (similar to how /xpkremove works).

Done aa80780