[beast] TRAVIS: add debian testing to the build matrix

[Tim Janik <timj src gnome org>]

commit ec97b48878ddf0aea1aba7d24707c7ea3ee1bc65
Author: Tim Janik <timj gnu org>
Date:   Tue Mar 22 13:03:50 2016 +0100

    TRAVIS: add debian testing to the build matrix
    
    Signed-off-by: Tim Janik <timj gnu org>

 .travis.yml |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 0e14d9e..66a730b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ env:
     - bintray_url="https://dl.bintray.com/beast-team";
   matrix:
     - XFROM="debian:jessie" XUP="jessie"
+    - XFROM="debian:testing" XUP="testing"
     - XFROM="ubuntu:trusty" XUP="trusty"
     - XFROM="ubuntu:wily"   XUP="wily"
     - XFROM="ubuntu:xenial" XUP="xenial"