Moved to reflection (code looks 45% uglier), added new expression for...

entities: NoClip and Fireproof. 
Added support to NBT List tags for the TagOf expression.

src/me/TheBukor/SkStuff/util/ReflectionUtils.java

@@ -0,0 +1,36 @@
+package me.TheBukor.SkStuff.util;
+
+import org.bukkit.Bukkit;
+
+public class ReflectionUtils {
+
+	public static Class<?> getNMSClass(String classString) {
+		String version = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3] + ".";
+		String name = "net.minecraft.server." + version + classString;
+		Class<?> nmsClass = null;
+		try {
+			nmsClass = Class.forName(name);
+		} catch (ClassNotFoundException ex) {
+			Bukkit.getLogger().warning("Unable to get NMS class! You are probably running an unsupported version");
+			return null;
+		}
+		return nmsClass;
+	}
+
+	public static Class<?> getOBCClass(String classString) {
+		String version = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3] + ".";
+		String name = "org.bukkit.craftbukkit." + version + classString;
+		Class<?> obcClass = null;
+		try {
+			obcClass = Class.forName(name);
+		} catch (ClassNotFoundException ex) {
+			Bukkit.getLogger().warning("Unable to get OBC class! You are probably running an unsupported version");
+			return null;
+		}
+		return obcClass;
+	}
+	
+	public static String getVersion() {
+		return Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3] + ".";
+	}
+}