Added Guava... for now.

We have to check to some serious breakage across the board before we can
release.

pom.xml

@@ -126,6 +126,14 @@
       <optional>true</optional>
     </dependency>
 
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>10.0.1</version>
+      <scope>compile</scope>
+      <type>jar</type>
+    </dependency>
+    
     <dependency> <!-- NMS blocks -->
       <groupId>org.bukkit</groupId>
       <artifactId>craftbukkit</artifactId>