added descriminator
host must be a domain name without a scheme
merged from upstream
added security example
updated security example
Merge pull request #78 from raymondfeng/master

Fix model refs
Update $ref references
Merge pull request #80 from mohsen1/patch-1

Update $ref references
Merge pull request #68 from earth2marsh/patch-1

host must be a domain name without a scheme
updated schemas to definitions per #81
updated schemas to definitions per #81
updated schema to disallow  per #82
updated schema to disallow  per #82
fixed host
moved to separate schema for serializable types #74
enabled test
updated samples per #74
fixed vendor properties on params
updated examples per #74
updated response headers to be simple