Upgraded Spring to dev version + javascript support

git-svn-id: https://svn.apache.org/repos/asf/cocoon/branches/butterfly@54016 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/spring-sandbox.jar b/lib/spring-sandbox.jar
new file mode 100644
index 0000000..c71464a
--- /dev/null
+++ b/lib/spring-sandbox.jar
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