* update versions of dependencies on swift4 and swift3
* change syntax for swift4
* run petstore script
* change enum case from UpperCamel to lowerCamel
* remove unneeded break statements
* avoid wrapping conditionals in parentheses
* avoid force casting
* run pod update on petstore/swift4/rxswift
* update project for swift 4
* run swift4-petstore-all.sh
* fix compile error
* avoid use iso8601 date strategy for encoder / decoder
* resolve file references
* added headers to makeRequest function for swift3 template
* Added configuration file to Swift3 template
* added comments about the value read only once
* added comments about the value read only once
* comments fix
* Added Configuration.swift to Project File
* swift 3 promisekit, rxswift updates
* Added code to templates to ensure generation of code for Swift3 that builds on both Apple platforms and Linux. Fixed a bug in the Model decoders that prevented code from building for Linux
* Ran the script to generate the PetStore API
