Fix BanList command and other *list functionality

By: md_5 <git@md-5.net>

CraftBukkit-Patches/0136-Check-for-blank-OfflinePlayer-Names.patch

@@ -1,21 +1,21 @@
-From a416b1a77ca43eae714a6b088167e31f9ba6d750 Mon Sep 17 00:00:00 2001
+From 0075a3a74cd4e5fd1d1c77a27b4632606da7d19a Mon Sep 17 00:00:00 2001
 From: md_5 <git@md-5.net>
 Date: Mon, 14 Apr 2014 17:21:24 +1000
 Subject: [PATCH] Check for blank OfflinePlayer Names
 
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 4920956..50a783e 100644
+index ddce3d9..e98c1ef 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -1304,6 +1304,7 @@ public final class CraftServer implements Server {
+@@ -1319,6 +1319,7 @@ public final class CraftServer implements Server {
  
      public OfflinePlayer getOfflinePlayer(String name) {
          Validate.notNull(name, "Name cannot be null");
 +        com.google.common.base.Preconditions.checkArgument( !org.apache.commons.lang.StringUtils.isBlank( name ), "Name cannot be blank" ); // Spigot
  
-         OfflinePlayer result = getPlayerExact(name);
-         if (result == null) {
+         // If the name given cannot ever be a valid username give a dummy return, for scoreboard plugins
+         if (!validUserPattern.matcher(name).matches()) {
 -- 
 1.8.3.2