* 1st commit of lua generator
* add petstore sample
* various fixes based on feedback
* better return handling
* check status code 1st letter
* add support for query parameters, auth, body param
* more fixes based on daurnimator feedback
* more fixes based on daurnimator feedback
* fix a few more issues found by luac -p
* use lower case for http header key name
* more fixes based on feedback
* update lua sample
* skip auto-generated readme, doc, test files
* use tab instead of 2-space
* fix container return type
* fix cast method call
* fix cast function call
