Merge pull request #1 from cscorley/master

switch to new-style travis apt-get

Author: ramusus

.travis.yml

@@ -5,9 +5,10 @@ python:
     - "3.3"
     - "3.4"
     - "3.5"
-before_install:
-    - sudo apt-get update -qq
-    - sudo apt-get install -y ed
+addons:
+    apt:
+        packages:
+            - ed
 install:
     - pip install .
 script: nosetests