Implemented bukkit versioning

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

@@ -70,6 +70,7 @@ import org.bukkit.craftbukkit.inventory.CraftShapelessRecipe;
 import org.bukkit.craftbukkit.map.CraftMapView;
 import org.bukkit.scheduler.BukkitWorker;
 import org.bukkit.craftbukkit.scheduler.CraftScheduler;
+import org.bukkit.craftbukkit.util.Versioning;
 import org.bukkit.util.permissions.DefaultPermissions;
 import org.bukkit.event.world.WorldInitEvent;
 import org.bukkit.permissions.Permission;
@@ -82,6 +83,7 @@ public final class CraftServer implements Server {
     private final String serverName = "Craftbukkit";
     private final String serverVersion;
     private final String protocolVersion = "1.8.1";
+    private final String bukkitVersion = Versioning.getBukkitVersion();
     private final ServicesManager servicesManager = new SimpleServicesManager();
     private final BukkitScheduler scheduler = new CraftScheduler(this);
     private final SimpleCommandMap commandMap = new SimpleCommandMap(this);
@@ -192,6 +194,10 @@ public final class CraftServer implements Server {
         return serverVersion + " (MC: " + protocolVersion + ")";
     }
     
+    public String getBukkitVersion() {
+        return bukkitVersion;
+    }
+
     @SuppressWarnings("unchecked")
     public Player[] getOnlinePlayers() {
         List<EntityPlayer> online = server.players;

src/main/java/org/bukkit/craftbukkit/util/Versioning.java

@@ -0,0 +1,29 @@
+package org.bukkit.craftbukkit.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.bukkit.Bukkit;
+
+public final class Versioning {
+    public static String getBukkitVersion() {
+        String result = "Unknown-Version";
+        
+        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/org.bukkit/bukkit/pom.properties");
+        Properties properties = new Properties();
+        
+        if (stream != null) {
+            try {
+                properties.load(stream);
+                
+                result = properties.getProperty("version");
+            } catch (IOException ex) {
+                Logger.getLogger(Versioning.class.getName()).log(Level.SEVERE, "Could not get Bukkit version!", ex);
+            }
+        }
+        
+        return result;
+    }
+}