Added reloadConfig() plugin method

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/plugin/Plugin.java

@@ -58,6 +58,11 @@ public interface Plugin extends CommandExecutor {
      * Saves the {@link FileConfiguration} retrievable by {@link #getConfig()}.
      */
     public void saveConfig();
+    
+    /**
+     * Discards any data in {@link #getConfig()} and reloads from disk.
+     */
+    public void reloadConfig();
 
     /**
      * Gets the associated PluginLoader responsible for this plugin

paper-api/src/main/java/org/bukkit/plugin/java/JavaPlugin.java

@@ -120,18 +120,22 @@ public abstract class JavaPlugin implements Plugin {
     
     public FileConfiguration getConfig() {
         if (newConfig == null) {
-            newConfig = YamlConfiguration.loadConfiguration(configFile);
-            
-            InputStream defConfigStream = getResource("config.yml");
-            if (defConfigStream != null) {
-                YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
-                
-                newConfig.setDefaults(defConfig);
-            }
+            reloadConfig();
         }
         return newConfig;
     }
     
+    public void reloadConfig() {
+        newConfig = YamlConfiguration.loadConfiguration(configFile);
+
+        InputStream defConfigStream = getResource("config.yml");
+        if (defConfigStream != null) {
+            YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
+
+            newConfig.setDefaults(defConfig);
+        }
+    }
+    
     public void saveConfig() {
         try {
             newConfig.save(configFile);