Update to Lucene/solr 4.1.0.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/integration/solr-4.x/trunk@1440243 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/build.xml b/build.xml
index 1ffce57..514862e 100644
--- a/build.xml
+++ b/build.xml
@@ -29,7 +29,7 @@
     <mkdir dir="solr" />
     <exec dir="solr" executable="svn" failifexecutionfails="true" failonerror="true">
       <arg value="checkout" />
-      <arg value="http://svn.apache.org/repos/asf/lucene/dev/tags/lucene_solr_4_0_0/" />
+      <arg value="http://svn.apache.org/repos/asf/lucene/dev/tags/lucene_solr_4_1_0/" />
       <arg value="." />
     </exec>
   </target>