snorby # bundle install
Updating https://github.com/postmodern/dm-is-read_only.git
Updating https://github.com/Snorby/snorby_cas_authenticatable.git
Updating https://github.com/mephux/ezprint.git
Updating https://github.com/Snorby/delayed_job_data_mapper.git
Fetching gem metadata from https://rubygems.org/......
Fetching additional metadata from https://rubygems.org/..
Resolving dependencies...
Using rake (0.9.2)
Using RedCloth (4.2.9)
Using multi_json (1.8.4)
Using activesupport (3.1.12)
Using builder (3.0.4)
Using i18n (0.6.9)
Using activemodel (3.1.12)
Using erubis (2.7.0)
Using rack (1.3.10)
Using rack-cache (1.2)
Using rack-mount (0.8.3)
Using rack-test (0.6.2)
Using hike (1.2.3)
Using tilt (1.4.1)
Using sprockets (2.0.4)
Using actionpack (3.1.12)
Using mime-types (1.25.1)
Using polyglot (0.3.3)
Using treetop (1.4.15)
Using mail (2.4.4)
Using actionmailer (3.1.12)
Using arel (2.2.3)
Using tzinfo (0.3.38)
Using activerecord (3.1.12)
Using activeresource (3.1.12)
Using addressable (2.3.5)
Using ansi (1.4.3)
Using bcrypt-ruby (3.1.2)
Using bundler (1.5.2)
Using cancan (1.6.10)
Using highline (1.6.20)
Using net-ssh (2.8.0)
Using net-scp (1.1.2)
Using net-sftp (2.1.2)
Using net-ssh-gateway (1.2.0)
Using capistrano (2.14.1)
Using mini_portile (0.5.2)

Gem::InstallError: nokogiri requires Ruby version >= 1.9.2.
An error occurred while installing nokogiri (1.6.1), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.1'` succeeds before bundling.