Adds per faction warps functionality from #72.

Default max warps per faction is 5. It can be changed in the config.yml.
You can now use {warps} in the info board to show how many warps a faction has when you walk into their territory.
Only faction mods+ can set faction warps.

src/main/java/com/massivecraft/factions/cmd/CmdDelFWarp.java

@@ -0,0 +1,29 @@
+package com.massivecraft.factions.cmd;
+
+import com.massivecraft.factions.struct.Permission;
+
+public class CmdDelFWarp extends FCommand {
+
+    public CmdDelFWarp() {
+        super();
+        this.aliases.add("delwarp");
+        this.aliases.add("dw");
+        this.aliases.add("deletewarp");
+        this.requiredArgs.add("warp name");
+        this.senderMustBeMember = true;
+        this.senderMustBeModerator = true;
+        this.senderMustBePlayer = true;
+        this.permission = Permission.SETWARP.node;
+    }
+
+    @Override
+    public void perform() {
+        String warp = argAsString(0);
+        if (myFaction.isWarp(warp)) {
+            myFaction.removeWarp(warp);
+            fme.msg("<i>Deleted warp <a>%s", warp);
+        } else {
+            fme.msg("<i>Couldn't find warp <a>%s", warp);
+        }
+    }
+}