prep 4.0.0 release

Author: duncdrum

README.md

@@ -1,7 +1,7 @@
 # eXist-db Documentation
 [![Build Status](https://travis-ci.org/eXist-db/documentation.svg?branch=master)](https://travis-ci.org/eXist-db/documentation)
 [![Docbook version](https://img.shields.io/badge/docbook-5.0-19a5a4.svg)](http://docbook.org/xml/5.0/)
-[![eXist-db version](https://img.shields.io/badge/eXist_db-3.5.0-blue.svg)](http://www.exist-db.org/exist/apps/homepage/index.html)
+[![eXist-db version](https://img.shields.io/badge/eXist_db-4.0.0-blue.svg)](http://www.exist-db.org/exist/apps/homepage/index.html)
 
 <img src="src/main/xar-resources/icon.png" align="left" width="15%"/>
 
@@ -12,7 +12,7 @@ As of January 2018 the exist-db documentation is undergoing a major rewrite. Whi
 
 ## Dependencies
 -   [Maven](https://maven.apache.org): 3.x
--   [eXist-db](http://exist-db.org): 3.5.0
+-   [eXist-db](http://exist-db.org): 4.0.0
 
 ## Installation
 -   The default eXist-db installer includes the documentation app. Just go to your eXist server's Dashboard and select Documentation.

pom.xml

@@ -48,7 +48,7 @@
         <project.build.source>1.8</project.build.source>
         <project.build.target>1.8</project.build.target>
 
-        <exist.version>3.5.0</exist.version>
+        <exist.version>4.0.0</exist.version>
 
         <package-name>http://exist-db.org/apps/doc</package-name>
     </properties>

xar-assembly.xml

@@ -14,10 +14,18 @@
   <category id="apps">Applications</category>
   <category id="doc">Documentation</category>
   <dependency processor="http://exist-db.org" semver-min="${exist.version}"/>
-  <dependency package="http://exist-db.org/apps/shared" semver-min="0.4.0"/>
+  <dependency package="http://exist-db.org/apps/shared" semver-min="0.4.2"/>
   <prepare>pre-install.xql</prepare>
   <note>Note for users of eXist 2.x: When upgrading, please make sure you also updated the shared-resources package to > 0.4.0.</note>
   <changelog>
+    <change version="4.0.0">
+      <ul xmlns="http://www.w3.org/1999/xhtml">
+        <li>[lucene.xml, indexing.xml] add info about the ICUFoldingFilter and UCA collation</li>
+        <li>documentation now uses docbook 5.0 </li>
+        <li>fix use of empty-sequence in example</li>
+        <li>A major rework is in progress based on edits by Erik Siegel</li>
+      </ul>
+    </change>
     <change version="3.0.0">
       <ul xmlns="http://www.w3.org/1999/xhtml">
         <li>