add org.eclipse.jst.ejb.doc.user to webtools.javaee update site so it's accessible from webservices build

Signed-off-by: nickboldt <nboldt@redhat.com>

site/category.xml

diff --git a/site/category.xml b/site/category.xml
index e0d2f88..fe7c337 100644
--- a/site/category.xml
+++ b/site/category.xml
@@ -48,6 +48,7 @@
     <bundle id="org.eclipse.jst.jee.web"/>
     <bundle id="org.eclipse.jst.servlet.ui"/>
     <bundle id="org.eclipse.wtp.jee.capabilities"/>
+    <bundle id="org.eclipse.jst.ejb.doc.user"/>
 
     <feature id="org.eclipse.jst.web_tests.feature"><category name="jeetools.tests"/></feature>