Fix null guild and shutdown message

src/main/java/com/fpghoti/biscuit/guild/BiscuitGuild.java

@@ -240,7 +240,7 @@ public class BiscuitGuild {
 			logger.error("Error retrieving Text Channel from YouTube feed file.");
 			return null;
 		}
-		YTFeed feed = new YTFeed(alias, textChannel, youTubeChannelURL, message);
+		YTFeed feed = new YTFeed(this, alias, textChannel, youTubeChannelURL, message);
 		feed.setLastVideo(lastVideo);
 		feed.setLastVideoTimestamp(lastVideoTimestamp);
 		return new YTFeedConfig(this, feed);
@@ -260,7 +260,7 @@ public class BiscuitGuild {
 		if(guild == null || ytfeeds.containsKey(alias)) {
 			return false;
 		}
-		YTFeed feed = new YTFeed(alias, channel, channelURL, message);
+		YTFeed feed = new YTFeed(this, alias, channel, channelURL, message);
 		
 		String lastURL =feed.getEntries().getLast().getURL();
 		feed.setLastVideo(lastURL);

src/main/java/com/fpghoti/biscuit/plugin/PluginController.java

@@ -2,9 +2,11 @@ package com.fpghoti.biscuit.plugin;
 
 import java.util.ArrayList;
 import java.util.Iterator;
+import java.util.List;
 
 import org.pf4j.DefaultPluginManager;
 import org.pf4j.PluginManager;
+import org.pf4j.PluginWrapper;
 
 public class PluginController implements Iterable<BiscuitPlugin> {
 
@@ -13,12 +15,12 @@ public class PluginController implements Iterable<BiscuitPlugin>{
 
     public PluginController() {
         pluginManager = new DefaultPluginManager();
-		plugins = new ArrayList<BiscuitPlugin>();
+        plugins = new ArrayList<>();
     }
 
     @Override
     public Iterator<BiscuitPlugin> iterator() {
-		return new ArrayList<BiscuitPlugin>(plugins).iterator();
+        return new ArrayList<>(plugins).iterator();
     }
 
     public void registerPlugin(BiscuitPlugin plugin) {
@@ -36,16 +38,35 @@ public class PluginController implements Iterable<BiscuitPlugin>{
     }
 
     public void stopPlugins() {
-		pluginManager.stopPlugins();
+        List<PluginWrapper> startedPlugins = new ArrayList<>(pluginManager.getStartedPlugins());
+
+        for (PluginWrapper plugin : startedPlugins) {
+            try {
+                pluginManager.stopPlugin(plugin.getPluginId());
+            } catch (Exception e) {
+                System.err.println("Failed to stop plugin: " + plugin.getPluginId());
+                e.printStackTrace();
+            }
+        }
     }
 
     public void unloadPlugins() {
-		pluginManager.unloadPlugins();
+        List<PluginWrapper> loadedPlugins = new ArrayList<>(pluginManager.getPlugins());
+
+        for (PluginWrapper plugin : loadedPlugins) {
+            try {
+                pluginManager.unloadPlugin(plugin.getPluginId());
+            } catch (Exception e) {
+                System.err.println("Failed to unload plugin: " + plugin.getPluginId());
+                e.printStackTrace();
+            }
+        }
     }
 
     public void shutdownPlugins() {
         stopPlugins();
         unloadPlugins();
+
         plugins.clear();
     }
 
@@ -57,5 +78,4 @@ public class PluginController implements Iterable<BiscuitPlugin>{
         }
         return false;
     }
-	
 }

src/main/java/com/fpghoti/biscuit/rss/YTEntry.java

@@ -21,6 +21,7 @@ public class YTEntry {
 		this.id = id;
 		this.title = title;
 		this.author = author;
+		this.timestamp = timestamp;
 		this.description = description;
 		this.thumbnail = thumbnail;
 	}

src/main/java/com/fpghoti/biscuit/rss/YTFeed.java

@@ -28,8 +28,8 @@ public class YTFeed {
 	private String lastVideo;
 	private String lastVideoTimestamp;
 
-	public YTFeed(String alias, TextChannel channel, String channelURL, String message) {
-		this.guild = BiscuitGuild.getBiscuitGuild(channel.getGuild());
+	public YTFeed(BiscuitGuild guild, String alias, TextChannel channel, String channelURL, String message) {
+	    this.guild = guild;
 	    this.alias = alias;
 	    this.channel = channel;
 	    this.channelURL = channelURL;