Fix bad gwt-servlet dep problem described in http://code.google.com/p/google-web-toolkit/issues/detail?id=5918


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9630 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/samples/expenses/pom.xml b/samples/expenses/pom.xml
index 46396ef..4ae585b 100644
--- a/samples/expenses/pom.xml
+++ b/samples/expenses/pom.xml
@@ -623,7 +623,12 @@
             <artifactId>gwt-dev</artifactId>
             <version>${gwt.version}</version>
           </dependency>
-        </dependencies>
+          <dependency>
+            <groupId>com.google.gwt</groupId>
+            <artifactId>gwt-servlet</artifactId>
+            <version>${gwt.version}</version>
+          </dependency>
+       </dependencies>
         <configuration>
           <logLevel>INFO</logLevel>
           <style>PRETTY</style>