Add exampe listener

src/com/coalesce/bukkitforclojure/example/listener.clj

+(ns com.coalesce.bukkitforclojure.example.listener
+  (:import [org.bukkit.event.player PlayerJoinEvent]
+           [org.bukkit Bukkit ChatColor]
+           [org.bukkit.entity Player]))
+
+(defn playerJoinedHandler
+  [^PlayerJoinEvent event]
+  (Bukkit/broadcastMessage (ChatColor/translateAlternateColorCodes \& (str "&c" (-> (.getPlayer event) (.getName)) " has joined the Clojure-run server!")))
+  )
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