bump version ready for new cycle

Author: jcupitt

ChangeLog

@@ -1,3 +1,5 @@
+started 8.5 24/1/17
+
 started 8.4.1 25/9/16
 - simplify nip2-icon.rc build, bgilbert
 

configure.ac

@@ -1,6 +1,6 @@
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([nip2], [8.4.1], [vipsip@jiscmail.ac.uk])
+AC_INIT([nip2], [8.5], [vipsip@jiscmail.ac.uk])
 
 # foreign stops complaints about a missing README (we use README.md instead)
 # and missing INSTALL (the standard Gnu INSTALL is not very useful)
@@ -16,8 +16,8 @@ dnl of them.
 dnl
 
 m4_define([nip_major_version], [8])
-m4_define([nip_minor_version], [4])
-m4_define([nip_micro_version], [1])
+m4_define([nip_minor_version], [5])
+m4_define([nip_micro_version], [0])
 m4_define([nip_version],
           [nip_major_version.nip_minor_version.nip_micro_version])