2015-09-24: write NEWS for next release.

write NEWS for next release.

diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+wisp 0.8.7 (2015-09-24):
+- new example say.w, companion to 
+- bootstrap now explicitly requires bash
+- include wisp.scm in the tarball to allow for pure-guile bootstrapping.
+- spec: handle locale errors more gracefully
+- improve readme
+
 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