Allow CssResource to handle identifiers containing underscores or that have a leading hyphen.

Patch by: bobv
Review by: cromwellian

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7413 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/dev/build.xml b/dev/build.xml
index 0991df8..5073f0a 100755
--- a/dev/build.xml
+++ b/dev/build.xml
@@ -36,7 +36,7 @@
         <pathelement location="${gwt.tools.lib}/jfreechart/jfreechart-1.0.3.jar" />
         <pathelement location="${gwt.tools.lib}/selenium/selenium-java-client-driver.jar" />
         <pathelement location="${gwt.tools.lib}/w3c/sac/sac-1.3.jar" />
-        <pathelement location="${gwt.tools.lib}/w3c/flute/flute-1.3.jar" />
+        <pathelement location="${gwt.tools.lib}/w3c/flute/flute-1.3-gg1.jar" />
         <pathelement location="${gwt.build.lib}/gwt-dev-${build.host.platform}.jar" />
         <pathelement location="${alldeps.jar}" />
       </classpath>