handbook: Various tweaks for recent fop/pdf generation

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

handbook/Makefile

@@ -2,7 +2,7 @@ all: html pdf
 
 pdf:
 
-	poky-docbook-to-pdf poky-handbook.xml
+	./poky-doc-tools/poky-docbook-to-pdf poky-handbook.xml
 #       -- old way --
 #	dblatex poky-handbook.xml
 

handbook/introduction.xml

@@ -58,7 +58,7 @@
     <screenshot>
     <mediaobject>
         <imageobject>
-            <imagedata fileref="screenshots/ss-sato.png" format="PNG"/>
+            <imagedata fileref="screenshots/ss-sato.png" format="PNG" align='center' scalefit='1' width="100%" contentdepth="100%"/>
         </imageobject>
         <caption>
             <para>The Sato Desktop - A screenshot from a machine running a Poky built image</para>

handbook/poky-handbook.xml

@@ -11,7 +11,7 @@
             <imageobject>
                 <imagedata fileref='common/poky-handbook.png' 
                     format='SVG' 
-                    align='center'/>
+                    align='center' scalefit='1' width='100%'/>
             </imageobject>    
         </mediaobject>
 

handbook/ref-structure.xml

@@ -218,7 +218,6 @@
 
     <section id='structure-build-tmp-staging'>
         <title><filename class="directory">build/tmp/staging/</filename></title>
-
         <para>
             Any package needing to share output with other packages does so within staging.
             This means it contains any shared header files and any shared libraries amongst