[library-web] force gnome-devel-docs 3.15 to be found

[Frederic Peters <fpeters src gnome org>]

commit 935151dd720df96d7d5c32851d9f8706dc7ca4b2
Author: Frédéric Péters <fpeters 0d be>
Date:   Thu Feb 12 10:55:34 2015 +0100

    force gnome-devel-docs 3.15 to be found

 data/extra-tarballs |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/extra-tarballs b/data/extra-tarballs
index 1c65a85..a1444fe 100644
--- a/data/extra-tarballs
+++ b/data/extra-tarballs
@@ -89,6 +89,8 @@ gnome://libsecret
 gnome://discident-glib
 gnome://libgit2-glib
 
+gnome://gnome-devel-docs?min=3.15
+
 # Glade 3.8 was never included in a moduleset, so we force it
 # here. See https://bugzilla.gnome.org/show_bug.cgi?id=664801
 gnome://glade3?min=3.8