Updated plan.html.

misc/plan.html

@@ -14,7 +14,7 @@
   <h1> Nettle release plans </h1>
   <p> This is an attempt at defining a development target for
   Nettle-2.6, inspired by similar pages for recent GMP releases. [Last
-  updated 2012-11-29]</p>
+  updated 2013-01-01]</p>
   <p class='should'>
     This really ought to be done before release
   </p>
@@ -30,13 +30,19 @@
 
   <h1> Plan for the Nettle-2.6 release </h1>
   <h2> Documentation </h2>
-  <p class='should'>
+  <p class='done'>
     Update documentation with info on SHA3.
   </p>
   <p class='should'>
     Update NEWS file.
   </p>
 
+  <h2> Build system </h2>
+  <p class='done'>
+    Ensure that <tt>make install</tt> without a preceding
+    <tt>make</tt> works.
+  </p>
+
   <h2> Testing </h2>
   <p> Since xenofarm isn't up and running, do some manual testing:
   </p>