Merge pull request #22 from fehguy/master

moved xml hints to separate element, added response, resource samples
renamed files, made more compact
Merge branch 'master' of git://github.com/fehguy/swagger-spec into fehguy-master
Merge branch 'fehguy-master'
Merge pull request #24 from fehguy/master

added model schema, test cases
Use "$ref" to point to models instead of "type"
Merge pull request #25 from webron/patch-1

Use "$ref" to point to models instead of "type"
Update 01-sample.json

updated response type to model refs
updated versions
added property schemas, samples