Doc. Commit history note for my future understanding: the 19_MAINT branch

was abandonned at this point.  There is not enough new development in trunk
to justify version 1.20, and what there is has seen quite a lot of test
(mostly the code refactoring necessitated by the optional "update only ext
attr metadata" feature). OTOH the python3 code needs to come out to support
the new Unity scope, and I was too lazy to merge it the 19 branch (also a
bit too much mod for a "maintenance" branch). So what would have been
1.20.0 comes out as 1.19.10, on the trunk.

website/release-1.19.html

@@ -63,6 +63,21 @@ Configuration</em> menu.</p>
 
 <h2><a name="minor_releases">Minor releases at a glance</a></h2>
 <ul>
+  <li>1.19.10 has a bit more changes than
+    usually goes into a Recoll minor version, and could have been
+    1.20.0 instead. On the other hand, it
+    brings some features which needed to be released, and did not
+    really warrant a major version. So here goes:
+    <ul>
+      <li>Python3 compatibility for the Python Recoll module.</li>
+      <li>A Ubuntu Unity Scope for saucy (13.10), replacing the
+        lens (and which needed Python 3).</li>
+      <li>A new PPT format text extractor. Catppt just did not extract
+        anything from more recent .ppt files.</li>
+    </ul> Mostly, if you are not running Ubuntu (Saucy or later), you
+    can just <a href="filters/filters.html">download the ppt
+    filter</a> and stay with 1.19.9. 
+  </li>
   <li>1.19.9 fixes a few <a href="BUGS.html#b_1_19_8">bugs</a>.</li>
   <li>1.19.8 changes the way we handle Hindi / Devanagari
     text (no more stripping of diacritics), and also has a fix for the