Bump version number


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@160 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/configure.ac b/configure.ac
index 22156c2..cec6aca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.56])
-AC_INIT([libjpeg-turbo], [0.0.90])
+AC_INIT([libjpeg-turbo], [0.0.91])
 BUILD=`date +%Y%m%d`
 
 AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])