Pre-release version bump

configure.ac

@@ -31,7 +31,7 @@ AC_PREREQ([2.57])
 #
 #   - Released development versions have an odd MINOR number
 #
-#   - Released stable versions have an event MINOR number
+#   - Released stable versions have an even MINOR number
 #
 #   - Versions that break ABI must have a new MAJOR number
 #
@@ -53,8 +53,8 @@ AC_PREREQ([2.57])
 #
 
 m4_define([pixman_major], 0)
-m4_define([pixman_minor], 15)
-m4_define([pixman_micro], 21)
+m4_define([pixman_minor], 16)
+m4_define([pixman_micro], 0)
 
 m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])