Extract a command super class inside Opal::Util
Make use of the command class to check for PhantomJS
Add Range#size
Disable some Time specs that fails under some timezones
Allow an external list of specs to be passed to `rake mspec`
Use aliases instead of doubled method calls
Enable custom patterns for mspec runs
Add bundler to development dependencies
Fix Hash#initialize spec that was passing due to native.rb presence
fixup! Add Range#size