[gnome-builder] bulid: post-release version bump

[Christian Hergert <chergert src gnome org>]

commit d08eb6591e8ab59b6316266384c494e2aae3ab2e
Author: Christian Hergert <chergert redhat com>
Date:   Mon Sep 10 22:34:03 2018 -0700

    bulid: post-release version bump

 NEWS             | 13 +++++++++++++
 doc/help/conf.py |  4 ++--
 meson.build      |  2 +-
 3 files changed, 16 insertions(+), 3 deletions(-)
---
diff --git a/NEWS b/NEWS
index c19f393b7..e5df01fb9 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,16 @@
+==============
+Version 3.31.1
+==============
+
+Changes since last release:
+
+ • Add setting to disable clearing build caches at startup.
+ • Build system improvements for release/nodebug builds.
+
+Updated Translations:
+
+  French, Brazilian Portuguese, Swedish
+
 ==============
 Version 3.30.0
 ==============
diff --git a/doc/help/conf.py b/doc/help/conf.py
index e5ae0cdad..a4a21e6e9 100644
--- a/doc/help/conf.py
+++ b/doc/help/conf.py
@@ -58,9 +58,9 @@ author = 'Christian Hergert, et al.'
 # built documents.
 #
 # The short X.Y version.
-version = '3.30'
+version = '3.31'
 # The full version, including alpha/beta/rc tags.
-release = '3.30.0'
+release = '3.31.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/meson.build b/meson.build
index b1239c8ec..03ff681dc 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('gnome-builder', 'c',
           license: 'GPL3+',
-          version: '3.30.0',
+          version: '3.31.0',
     meson_version: '>= 0.47.1',
   default_options: [ 'c_std=gnu11',
                      'cpp_std=c++11',