[grilo-plugins] travis: Update to Ubuntu Trusty

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 4577cc08a92679383117bbe98231f77ea5ca4a7e
Author: Juan A. Suarez Romero <jasuarez igalia com>
Date:   Tue Jun 24 16:40:57 2014 +0200

    travis: Update to Ubuntu Trusty
    
    We require quite new dependencies that are not easy to back-port to
    Ubuntu Precise, the default version that Travis CI uses.

 .travis.yml |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 45987e7..e9834df 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: c
 compiler: gcc
 before_install:
   - sudo add-apt-repository ppa:grilo-team/ppa -y
+  - sudo add-apt-repository "deb mirror://mirrors.ubuntu.com/mirrors.txt trusty
+ main restricted universe multiverse" -y
   - sudo apt-get update -qq
   - sudo apt-get install -qq gnome-common libjson-glib-dev libsoup2.4-dev
          libgrilo-0.2-dev libsqlite3-dev liboauth-dev