[gnome-documents] Require Gepub 0.4

[Dominique Leuenberger <dleuen src gnome org>]

commit 51310af1c0563dd34fd19548e0090ed92f9f4560
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Wed Aug 31 14:55:09 2016 +0200

    Require Gepub 0.4
    
    https://bugzilla.gnome.org/show_bug.cgi?id=770645

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3bbfe64..767a629 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,7 +123,7 @@ AX_CHECK_GIRS_GJS([Tracker], [1.0])
 AX_CHECK_GIRS_GJS([TrackerControl], [1.0])
 AX_CHECK_GIRS_GJS([WebKit2], [4.0])
 AX_CHECK_GIRS_GJS([Zpj], [0.0])
-AX_CHECK_GIRS_GJS([Gepub], [0.3])
+AX_CHECK_GIRS_GJS([Gepub], [0.4])
 
 GLIB_COMPILE_RESOURCES=`$PKG_CONFIG --variable glib_compile_resources gio-2.0`
 AC_SUBST(GLIB_COMPILE_RESOURCES)