Add Grape to Gemfile
Add tests for Grape
Add simple tracing
Require Grape framework
Add to README
Rename test
Add extend functionality and class method alias
Fix typo
Add auto use Oboe::Rack and trace Endpoint instead
Remove `use Oboe::Rack`
Ignore Grape for Ruby 1.8
Update Gemfile.lock
Change from 1.8 to at least 1.9.3
Merge pull request #37 from tlunter/add_grape_support

Add Grape support