2017-10-08: prepare 0.9.6

prepare 0.9.6

diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,9 @@
 wisp ():
 
+wisp 0.9.6:
+- Add a warning with undefined indentation levels: they can
+  produce surprising behaviour when changing existing code.
+
 wisp 0.9.5:
 - Fix bug with using not yet defined lower indentation levels.
   See tests/partial-indent.{w,scm}
diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 dnl run `autoreconf -i` to generate a configure script. 
 dnl Then run ./configure to generate a Makefile.
 dnl Finally run make to generate the project.
-AC_INIT([wisp], [0.9.5],
+AC_INIT([wisp], [0.9.6],
         [arne_bab@web.de])
 # Add macros in m4/ to ensure that wisp builds without having Guile in the aclocal path
 AC_CONFIG_MACRO_DIR([m4])