```ruby
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'moltin/version'

Gem::Specification.new do |spec|
  spec.name          = "moltin"
  spec.version       = Moltin::VERSION
  spec.authors       = ["Marc Qualie"]
  spec.email         = ["marc@marcqualie.com"]

  spec.summary       = "Moltin eCommerce SDK"
  spec.description   = "Interact with and fully manage your Moltin store from within your ruby application"
  spec.homepage      = "https://github.com/moltin/ruby-sdk"

  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
  spec.bindir        = "exe"
  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ["lib"]

  spec.add_dependency "rest-client", "~> 1.8"

  spec.add_development_dependency "bundler", "~> 1.9"
  spec.add_development_dependency "rake", "~> 10.0"
  spec.add_development_dependency "rspec", "~> 3.2"
end
```

Allow apps to use rest-client 1.6
user
```ruby
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'moltin/version'

Gem::Specification.new do |spec|
  spec.name          = "moltin"
  spec.version       = Moltin::VERSION
  spec.authors       = ["Marc Qualie"]
  spec.email         = ["marc@marcqualie.com"]

  spec.summary       = "Moltin eCommerce SDK"
  spec.description   = "Interact with and fully manage your Moltin store from within your ruby application"
  spec.homepage      = "https://github.com/moltin/ruby-sdk"

  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
  spec.bindir        = "exe"
  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ["lib"]

  spec.add_dependency "rest-client", ">= 1.6", "< 2.0"

  spec.add_development_dependency "bundler", "~> 1.9"
  spec.add_development_dependency "rake", "~> 10.0"
  spec.add_development_dependency "rspec", "~> 3.2"
end
```
assistant