pom update for sonatype, docs

spring-data-graph-parent/pom.xml

@@ -5,7 +5,6 @@
 	<groupId>org.springframework.data</groupId>
 	<artifactId>spring-data-graph-parent</artifactId>
 	<name>Spring Data Graph Parent</name>
-	<url>http://www.springsource.org/spring-data/data-graph</url>
 	<version>1.1.0.BUILD-SNAPSHOT</version>
 	<packaging>pom</packaging>
     <description><![CDATA[

src/docbkx/reference/cross-store.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
-<chapter id="cross-store">
+<chapter id="reference:cross-store">
     <title>Cross-store persistence</title>
     <para>
         The Spring Data Graph project support cross-store persistence, which allows for parts of the data to be

src/docbkx/reference/preface.xml

@@ -105,6 +105,20 @@
         and evaluated whenever a property is set, or when a previously detached entity is persisted to the graph.
         (see <xref linkend="reference:programming-model:validation"/>)
     </para>
+    <para>
+        Unfortunately the setup of Spring Data Graph is more involved than we'd like. That is partly due to the maven setup
+        and dependencies, which can be alleviated by using different build systems like gradle or ant/ivy. The Spring configuration
+        itself boils down to two lines of <code>&lt;datagraph&gt;</code> namespace setup. (see <xref linkend="setup"/>)
+    </para>
+    <para>
+        Spring Data Graph can also be used in a JPA environment to add graph features to your JPA entities. In the <xref linkend="reference:cross-store"/>
+        the slightly different behavior and setup of a Graph-JPA interaction are described.
+    </para>
+    <para>
+        The provided samples, which are also publicly hosted on <ulink url="http://github.com/springsource/spring-data-graph-examples">github</ulink> are explained in
+        <xref linkend="reference:samples"/>.
+    </para>
+
 <!--
         <xi:include href="reference/neo4j.xml"/>
         <xi:include href="reference/programming-model/programming-model.xml"/>

src/docbkx/reference/samples.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
                  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
-<chapter id="samples">
+<chapter id="reference:samples">
     <title>Sample code</title>
 
     <section id="samples:introduction">