Add query-plugins setting. Addresses BUKKIT-1781

src/main/java/net/minecraft/server/MinecraftServer.java

@@ -728,7 +728,7 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
         result.append(" on Bukkit ");
         result.append(server.getBukkitVersion());
 
-        if (plugins.length > 0) {
+        if (plugins.length > 0 && this.server.getQueryPlugins()) {
             result.append(": ");
 
             for (int i = 0; i < plugins.length; i++) {

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -399,6 +399,10 @@ public final class CraftServer implements Server {
     public boolean getWarnOnOverload() {
         return this.configuration.getBoolean("settings.warn-on-overload");
     }
+    
+    public boolean getQueryPlugins() {
+        return this.configuration.getBoolean("settings.query-plugins");
+    }    
 
     public boolean hasWhitelist() {
         return this.getConfigBoolean("white-list", false);

src/main/resources/configurations/bukkit.yml

@@ -23,6 +23,7 @@ settings:
     use-exact-login-location: false
     plugin-profiling: false
     connection-throttle: 4000
+    query-plugins: true
 spawn-limits:
     monsters: 70
     animals: 15