Re-name some documentation directories, so they have better names now cover ole2 and ooxml (will need .htaccess redirect when putting live)

git-svn-id: https://svn.apache.org/repos/asf/poi/branches/ooxml@637603 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/book.xml

@@ -35,10 +35,10 @@
     <menu label="Project">
         <menu-item label="Overview" href="overview.html"/>
         <menu-item label="POIFS" href="poifs/index.html"/>
-        <menu-item label="HSSF+XSSF" href="ss/index.html"/>
+        <menu-item label="HSSF+XSSF" href="spreadsheet/index.html"/>
         <menu-item label="HWPF" href="hwpf/index.html"/>
         <menu-item label="HPSF" href="hpsf/index.html"/>
-        <menu-item label="HSLF" href="hslf/index.html"/>
+        <menu-item label="HSLF" href="slideshow/index.html"/>
         <menu-item label="HSMF" href="hsmf/index.html"/>
         <menu-item label="HDGF" href="hdgf/index.html"/>
 		<menu-item label="POI-Ruby" href="poi-ruby.html"/>

src/documentation/content/xdocs/index.xml

@@ -123,7 +123,7 @@
              <p>HSSF is our port of the Microsoft Excel 97(-2007) file format (BIFF8) to pure 
               Java. XSSF is our port of the Microsoft Excel XML (2007+) file format (OOXML) to
               pure Java. They both supports read and write capability. Please see 
-              <link href="./ss/index.html">the HSSF+XSSF project page</link> for more 
+              <link href="./spreadsheet/index.html">the HSSF+XSSF project page</link> for more 
               information.</p>
         </section>
         <section><title>HWPF for Word Documents</title>
@@ -139,7 +139,7 @@
 	<p>HSLF is our port of the Microsoft PowerPoint 97(-2003) file format to pure
 	  Java. It supports read and write capabilities of some, but not yet all
       of the core records. Please see <link
-	    href="./hslf/index.html">the HSLF project page for more
+	    href="./slideshow/index.html">the HSLF project page for more
 	    information</link>.</p>
         </section>
         <section><title>HDGF for Visio Documents</title>

src/documentation/content/xdocs/overview.xml

@@ -64,7 +64,7 @@
 
       <section><title>HSLF</title>
         <p>
-          <link href="hslf/index.html">HSLF</link>  is the set of APIs                   
+          <link href="slideshow/index.html">HSLF</link>  is the set of APIs                   
           for reading and writing Microsoft PowerPoint 97(-XP) documents using (only) Java.
         </p>
       </section>