Document recent changes.

* NEWS: Update.
* wrap/python/ajax/README: Explain the ltl3ba requirement.

NEWS

 New in spot 0.9.1a:
 
+  * New features to the web interface.
+    - It can run ltl3ba (Babiak et al., TACAS'12) where available.
+    - "a loading logo" is displayed when result is not instantaneous.
   * Speed improvements:
     - The unicity hash table of BuDDy has been separated separated
       node table for better cache-friendliness.  The resulting speedup
@@ -13,6 +16,12 @@ New in spot 0.9.1a:
   * Bug fixes:
     - The CGI script running for ltl2tgba.html will correctly timeout
       after 30s when Spot's translation takes more time.
+    - Applying WDBA-minimization on an automaton generated by the
+      Couvreur/LaCIM translator could lead to an incorrect automaton
+      due to a bug in the definition of product with symbolic
+      automata.
+    - The Makefile.am of BuDDy, LBTT, and Spot have been adjusted to
+      accomodate Automake 1.12 (while still working with 1.11).
 
 New in spot 0.9.1 (2012-05-23):
 

wrap/python/ajax/README

@@ -8,6 +8,9 @@ Apache, or standalone.
 In both cases you should ensure that the command `dot', from the
 GraphViz package, is in the PATH.  configure should have picked it up.
 
+The "ltl3ba" tab will only be enabled if ltl3ba is available (as
+checked by ./configure) and supports options -v/-U/-T (checked by the
+CGI script).  Any version strickly greater than 1.0.1 should be OK.
 
 
 Standalone usage