language: ruby
env:
  - USE_MINI_PORTILE=true
  - USE_MINI_PORTILE=false
rvm:
  - 1.8.7
  - 1.9.3
  - 2.0.0
  - ruby-head
matrix:
  allow_failures:
    - env: USE_MINI_PORTILE=false

sudo: false
language: ruby
cache: bundler
env:
  - USE_MINI_PORTILE=true
  - USE_MINI_PORTILE=false
rvm:
  - 1.8.7
  - 1.9.3
  - 2.0.0
  - ruby-head
matrix:
  allow_failures:
    - env: USE_MINI_PORTILE=false

Configure Travis for better build performance
[TASK] Configure Travis for better build performance

* set sudo: false so Travis can use their new container-based infrastructure
* enable bundler caching
