[gegl] configure: release 0.3.28

[Øyvind Kolås <ok src gnome org>]

commit 773d3a74a603b2213af760d7038397bb710bde61
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Jan 23 16:10:27 2018 +0100

    configure: release 0.3.28

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d231f78..0036ef1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@ dnl    set GEGL_BINARY_AGE _and_ GEGL_INTERFACE_AGE to 0.
 
 m4_define([gegl_major_version], [0])
 m4_define([gegl_minor_version], [3])
-m4_define([gegl_micro_version], [27])
+m4_define([gegl_micro_version], [28])
 m4_define([gegl_real_version],
           [gegl_major_version.gegl_minor_version.gegl_micro_version])
 m4_define([gegl_version], [gegl_real_version])
@@ -37,7 +37,7 @@ m4_define([gegl_stable],
 m4_define([gimp_full_name], [Generic Graphical Library])
 
 # required versions of external libraries
-m4_define([babl_required_version], [0.1.41])
+m4_define([babl_required_version], [0.1.42])
 m4_define([cairo_required_version], [1.12.2])
 m4_define([exiv2_required_version], [0.25])
 m4_define([gdk_pixbuf_required_version], [2.32.0])