Upgrade to 2.1.5 and bundle install
Fix intermittently failing test; use unique bio string
Update travis.yml to ruby 2.1.5 and use .ruby-version as canonical version definition
Move over to newer expect syntax, and update descriptions to remove un-necessary shoulds (http://betterspecs.org/#should)
Merge pull request #3 from danbartlett/update-rspec-syntax

Update tests to newer syntax
Sync Gemfile.lock