Fix for Bukkit "unknown command" error when using console commands

handling for extra commas in "baseCommandAliases" in conf.json adding null values

src/com/massivecraft/factions/cmd/FCmdRoot.java

@@ -1,5 +1,7 @@
 package com.massivecraft.factions.cmd;
 
+import java.util.Collections;
+
 import com.massivecraft.factions.Conf;
 
 public class FCmdRoot extends FCommand
@@ -55,6 +57,7 @@ public class FCmdRoot extends FCommand
 	{
 		super();
 		this.aliases.addAll(Conf.baseCommandAliases);
+		this.aliases.removeAll(Collections.singletonList(null));  // remove any nulls from extra commas
 		this.allowNoSlashAccess = Conf.allowNoSlashCommand;
 		
 		//this.requiredArgs.add("");