Use Travis container infrastructure

Author: autarch

.travis.yml

@@ -1,4 +1,15 @@
 ---
+sudo: false
+addons:
+  apt:
+    packages:
+      - aspell
+      - aspell-en
+      - iamerican
+      - ispell
+      - ispell-dictionary
+      - nodejs
+      - php5-cli
 language: perl
 perl:
   - blead
@@ -24,6 +35,4 @@ env:
 before_install:
   - git config --global user.email "[email protected]"
   - git config --global user.name "Test User"
-  - sudo apt-get update
-  - sudo apt-get install ispell nodejs php5-cli
   - eval $(curl https://travis-perl.github.io/init) --auto