2015-09-19: prepare build 0.8.7

prepare build 0.8.7

diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+wisp 0.8.7 (2015-09-19):
+- distribute wisp.scm in the tarball to allow bootstrapping purely
+  from Guile (without Python).
+- new example: say.w (companion to
+  http://draketo.de/english/wisp/shakespeare )
+- always use /usr/bin/env bash as hashbang for shell scripts.
+
 wisp 0.8.6 (2015-09-12):
 - wisp-scheme.w allows ending a chunk with a trailing period.  This
   syntax is reserved for future use in SRFI-119, so you should not
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], [0.8.6],
+AC_INIT([wisp], [0.8.7],
         [arne_bab@web.de])
 # Check for programs I need for my build
 AC_CANONICAL_TARGET