Merge pull request #40 from fehguy/master

added petstore sample
Added examples of a tighter syntax
Merge pull request #47 from madskristensen/master

Added examples of a syntax closer to common practices
The new JSON Schema file
Merge pull request #51 from madskristensen/patch-1

The new JSON Schema file
updated samples, disabled failing tests temporarily
Update README.md
removed old schemas in favor of schema.json
Merge branch 'master' of github.com:reverb/swagger-spec
updated to use model in response, added header
added descriminator