[gobject-introspection] Post-branch bump to 1.57.1

[Emmanuele Bassi <ebassi src gnome org>]

commit 862680daf4f2542d34f51082a03eebdea4dd4cc6
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sat Mar 10 13:59:14 2018 +0000

    Post-branch bump to 1.57.1

 configure.ac | 4 ++--
 meson.build  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3a0b196d..58a86b1c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,8 +3,8 @@
 
 dnl the gi version number
 m4_define(gi_major_version, 1)
-m4_define(gi_minor_version, 55)
-m4_define(gi_micro_version, 2)
+m4_define(gi_minor_version, 57)
+m4_define(gi_micro_version, 1)
 m4_define(gi_version, gi_major_version.gi_minor_version.gi_micro_version)
 
 AC_PREREQ([2.63])
diff --git a/meson.build b/meson.build
index c0b9393d..d273981c 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gobject-introspection', 'c',
-  version: '1.55.2',
+  version: '1.57.1',
   meson_version: '>= 0.42.0',
   default_options: [
     'warning_level=1',