2017-08-20: prepare for 0.9.2: NEWS and version

prepare for 0.9.2: NEWS and version

diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,13 @@
 wisp ():
-- 
+
+wisp 0.9.2:
+- README: note the releases and split usage into setup+usage
+- add y-combinator example in examples/y-combinator.w
+- added datatype benchmarks in examples/benchmark.w
+- ensemble estimation: setup deviations from the covariance matrix
+  by cholesky decomposition
+- enter three witches: i love you (dynamic dialog generation)
+- enter three witches: multiple scenes and .. as escape for .
 
 wisp 0.9.1:
 - add enter three witches: minimum overhead for a theater script
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], [0.9.1],
+AC_INIT([wisp], [0.9.2],
         [arne_bab@web.de])
 # Check for programs I need for my build
 AC_CANONICAL_TARGET