[tepl] Bump API version to 4

[Sébastien Wilmet <swilmet src gnome org>]

commit 9bc55afe48b52a6b86c77d041c36a4fa3cb9322a
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Oct 26 16:24:38 2017 +0200

    Bump API version to 4
    
    Because Tepl 3.0 depends on GtkSourceView 3, Tepl 4.0 will depend on
    GtkSourceView 4.

 NEWS                                               |    4 ++--
 README                                             |    2 +-
 configure.ac                                       |    6 +++---
 ...tepl-3.0-sections.txt => tepl-4.0-sections.txt} |    0
 po/Makevars                                        |    2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/NEWS b/NEWS
index 7dffd4e..ae17f32 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,5 @@
-News in 3.1.1, 2017-xx-yy (not yet released)
--------------------------
+News in 3.99.1, 2017-xx-yy (not yet released)
+--------------------------
 
 Framework:
 * Add more GAction's and corresponding AmtkActionInfo's:
diff --git a/README b/README
index 05b361c..de9fd00 100644
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 Tepl - Text editor product line
 ===============================
 
-This is version 3.1.0 of Tepl.
+This is version 3.99.0 of Tepl.
 
 Tepl is a library that eases the development of GtkSourceView-based text
 editors and IDEs.
diff --git a/configure.ac b/configure.ac
index fb17546..8fada1a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ(2.64)
 
 # Package version of the form 'major.minor.micro'.
-m4_define(tepl_package_version, 3.1.0)
+m4_define(tepl_package_version, 3.99.0)
 
 AC_INIT([tepl],
        [tepl_package_version],
@@ -49,10 +49,10 @@ AC_SUBST([TEPL_LT_VERSION])
 # API version, used for parallel installability.
 # Not used in:
 # - po/Makevars
-# - the docs/reference/tepl-3.0-sections.txt filename
+# - the docs/reference/tepl-4.0-sections.txt filename
 # Because as far as I've tested, it is not easily feasible to not hardcode the
 # API version in those places (swilmet).
-TEPL_API_VERSION=3
+TEPL_API_VERSION=4
 AC_SUBST(TEPL_API_VERSION)
 
 # Dependencies
diff --git a/docs/reference/tepl-3.0-sections.txt b/docs/reference/tepl-4.0-sections.txt
similarity index 100%
rename from docs/reference/tepl-3.0-sections.txt
rename to docs/reference/tepl-4.0-sections.txt
diff --git a/po/Makevars b/po/Makevars
index 84dea6e..16826b8 100644
--- a/po/Makevars
+++ b/po/Makevars
@@ -1,7 +1,7 @@
 # Makefile variables for PO directory in any package using GNU gettext.
 
 # Usually the message domain is the same as the package name.
-DOMAIN = tepl-3
+DOMAIN = tepl-4
 
 # These two variables depend on the location of this directory.
 subdir = po