* Adding support for non dictionary body types.
* Adding test for rest of the swift3 types
* Cleaning up implementation of makeRequest and adding better error handling.
* Adding ClientError for error produced before request is sent.
* Changing how encoding of body data is handled.
* Cleaning up code that was modified.
* two fixes: 1) extra ?'s at end of some url's 2) enums not being called out w/ rawValue to get the proper string name
* update samples
* one step closer
* closer implementation
* break on optional decode failing since it's an optional we don't want to fail the whole decode
* update samples
* two fixes: 1) extra ?'s at end of some url's 2) enums not being called out w/ rawValue to get the proper string name
* update samples
* one step closer
* closer implementation
* add back in array decoders
* regenerate samples
* two fixes: 1) extra ?'s at end of some url's 2) enums not being called out w/ rawValue to get the proper string name
* update samples
* one step closer
* closer implementation
* fix unwrapRequired models when we have a parameter named result
* two fixes: 1) extra ?'s at end of some url's 2) enums not being called out w/ rawValue to get the proper string name
* update samples
* one step closer
* closer implementation
* fix build when using unwrapRequired option
* Improve generated code in APIs so to use the most of Swift SDK
Improve generated code in APIHelper so to remove duplicated code and reuse existing checks
* run ./bin/swift3-petstore.sh
* Run ./bin/swift3-petstore-all.sh to update all the Petstore samples
* Restore old implementation and fix using .isEmpty in place of .count
* Run scripts to update pet store samples
* Reverte changes that use reduce
* Bug fixes on APIHelper template
