Bump to 0.9.1

CHANGES

@@ -1,6 +1,19 @@
 CHANGES
 =======
 
+0.9 to 0.9.1
+------------
+
+Let's use semver, and fix a couple of bugs:
+
+ - not properly closing file handles on exceptions (thanks, mwgamera)
+ - not using ctrl-a/ctrl-b for internal environment processing
+   so they can be used by libreadline properly
+
+Unfortunately, there are still problems around signal handling which I
+thought I'd fixed earlier. In practice, these have never affected me. See:
+https://github.com/wryun/es-shell/issues/7
+
 0.9beta1 to 0.9
 ---------------
 

release.es

@@ -0,0 +1,16 @@
+#!/usr/bin/env es
+
+# Create a new tarball
+
+if {!~ $#* 1} {
+    echo Must provide a single argument: the release version (e.g. 0.9.1)
+    exit 1
+}
+
+if {! grep -q $1 version.c} {
+    echo 'Must update version.c to '^$1
+    echo '(yes, this should be automated)'
+}
+
+tar chzvf ../es-$1.tar.gz --exclude\=.gitignore --exclude\=release.es `{git ls-files} config.guess config.sub configure install-sh
+

version.c

@@ -1,4 +1,4 @@
 /* version.c -- version number ($Revision: 1.2 $) */
 #include "es.h"
-static const char id[] = "@(#)es version 0.9 21-August-2012";
+static const char id[] = "@(#)es version 0.9.1 15-July-2016";
 const char * const version = id + (sizeof "@(#)" - 1);