Use the new build env on Travis

more ram and cpu, improved network and boot times

http://docs.travis-ci.com/user/workers/container-based-infrastructure/

more docs coming soon
diff --git a/.travis.yml b/.travis.yml
index 25522dd..92c6e88 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,8 @@
   - DB=pdo/pgsql
   - DB=pdo/sqlite
 
+sudo: false
+
 before_script:
   - composer install --dev --no-progress
   - sh -c "if [ '$DB' = 'pgsql' ] || [ '$DB' = 'pdo/pgsql' ]; then psql -c 'DROP DATABASE IF EXISTS ci_test;' -U postgres; fi"
@@ -36,4 +38,4 @@
 branches:
   only:
     - develop
-    - /^feature\/.+$/
\ No newline at end of file
+    - /^feature\/.+$/