Use Guava 16 which does not have compatibility issues

Change-Id: I721aad96dfec12c0b053c75707870207ccf049be

theme-compiler/ivy.xml

@@ -48,6 +48,7 @@
         <!-- Internally used, for now -->
         <dependency org="com.carrotsearch" name="smartsprites"
             rev="0.2.10" />
+        <override org="com.google.guava" module="guava" rev="16.0.1" />
         <!-- Use the same commons-io as the rest of the project -->
         <override org="commons-io" module="commons-io" rev="2.2" />
     </dependencies>