Add Faction vaults.

These can be accessed with /f vault <number>
Set a Faction's max vaults with /f setmaxvaults <faction> <number> - can be run from console so Buycraft can execute it.
* This is a not very tested implementation. Should be tested more in depth before being pushed to a release.

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

@@ -0,0 +1,84 @@
+package com.massivecraft.factions.cmd;
+
+import com.drtshock.playervaults.PlayerVaults;
+import com.drtshock.playervaults.util.Lang;
+import com.drtshock.playervaults.vaultmanagement.UUIDVaultManager;
+import com.drtshock.playervaults.vaultmanagement.VaultOperations;
+import com.drtshock.playervaults.vaultmanagement.VaultViewInfo;
+import com.massivecraft.factions.Conf;
+import com.massivecraft.factions.struct.Permission;
+import com.massivecraft.factions.zcore.util.TL;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+
+public class CmdVault extends FCommand {
+
+    public CmdVault() {
+        this.aliases.add("vault");
+
+        //this.requiredArgs.add("");
+        this.optionalArgs.put("number", "number");
+
+        this.permission = Permission.VAULT.node;
+        this.disableOnLock = false;
+
+        senderMustBePlayer = true;
+        senderMustBeMember = true;
+        senderMustBeModerator = false;
+        senderMustBeAdmin = false;
+    }
+
+    @Override
+    public void perform() {
+        /*
+             /f vault <number>
+         */
+
+        int number = argAsInt(0, 0); // Default to 0 or show on 0
+
+        Player player = me;
+
+        if (PlayerVaults.getInstance().getInVault().containsKey(player.getUniqueId().toString())) {
+            return; // Already in a vault so they must be trying to dupe.
+        }
+
+        int max = myFaction.getMaxVaults();
+        if (number > max) {
+            me.sendMessage(TL.COMMAND_VAULTS_TOOHIGH.format(number, max));
+            return;
+        }
+
+        // Something like faction-id
+        String vaultName = String.format(Conf.vaultPrefix, myFaction.getId());
+
+        if (number < 1) {
+            // Message about which vaults that Faction has.
+            // List the target
+            YamlConfiguration file = UUIDVaultManager.getInstance().getPlayerVaultFile(vaultName);
+            if (file == null) {
+                sender.sendMessage(Lang.TITLE.toString() + Lang.VAULT_DOES_NOT_EXIST.toString());
+            } else {
+                StringBuilder sb = new StringBuilder();
+                for (String key : file.getKeys(false)) {
+                    sb.append(key.replace("vault", "")).append(" ");
+                }
+
+                sender.sendMessage(Lang.TITLE.toString() + Lang.EXISTING_VAULTS.toString().replaceAll("%p", fme.getTag()).replaceAll("%v", sb.toString().trim()));
+            }
+            return;
+        } // end listing vaults.
+
+        // Attempt to open vault.
+        if (VaultOperations.openOtherVault(player, vaultName, String.valueOf(number))) {
+            // Success
+            PlayerVaults.getInstance().getInVault().put(player.getUniqueId().toString(), new VaultViewInfo(vaultName, number));
+        }
+    }
+
+    @Override
+    public TL getUsageTranslation() {
+        return TL.COMMAND_VERSION_DESCRIPTION;
+    }
+}