[gnome-music] travis: install package for missing yelp.m4

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit f63995a87ff51ac1af9aced88ecb2395cac3c061
Author: Vadim Rutkovsky <vrutkovs redhat com>
Date:   Thu Feb 27 12:22:23 2014 +0100

    travis: install package for missing yelp.m4

 .travis.yml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index f62afcf..572c5cb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ python:
 before_install:
   - echo "deb http://archive.ubuntu.com/ubuntu/ saucy main restricted universe multiverse" | sudo tee -a 
/etc/apt/sources.list
   - sudo apt-get update -qq
-  - sudo apt-get install -qq gnome-common gnome-doc-utils libgrilo-0.2-dev gnome-pkg-tools 
gobject-introspection libgirepository1.0-dev libglib2.0-dev libgtk-3-dev
+  - sudo apt-get install -qq gnome-common gnome-doc-utils libgrilo-0.2-dev gnome-pkg-tools 
gobject-introspection libgirepository1.0-dev libglib2.0-dev libgtk-3-dev yelp-tools
 install:
   - pip install pep8 pyflakes --use-mirrors
 script: