language: ruby
rvm:
    - 2.0.0
script: bundle exec rspec

language: ruby
rvm:
    - 2.0.0
env:
  global:
    - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
script: bundle exec rspec

Speed up nokogiri installation during Travis runs
Speed up nokogiri installation during Travis runs

Version 1.6 of Nokogiri builds its own copy of libxml2 during installation.
Setting `NOKOGIRI_USE_SYSTEM_LIBRARIES=true` skips this step and shaves a
couple minutes off of Travis runs.
