Fix v1.2.5 support, broken by API change in metrics

src/main/java/org/dynmap/bukkit/Metrics.java

@@ -220,6 +220,7 @@ public class Metrics {
             }
 
             // Begin hitting the server with glorious data
+            try {
                 task = plugin.getServer().getScheduler().runTaskTimerAsynchronously(plugin, new Runnable() {
 
                 private boolean firstPost = true;
@@ -254,6 +255,10 @@ public class Metrics {
                     }
                 }
                 }, 0, PING_INTERVAL * 1200);
+            } catch (NoSuchMethodError nsme) {
+                // Handle deprecated scheduler API stupidity
+                return false;
+            }
 
             return true;
         }