Fix gemspec dev dependencies (#90)

* Fix gemspec dev dependencies

* Cleanup gemfile

Author: Kevin Formsma

.rubocop.yml

@@ -1,5 +1,7 @@
 ---
 AllCops:
+  Exclude:
+    - 'spec/**/*'
   TargetRubyVersion: 2.5
 # Not going to use a Rails gem for this, disable until
 # Ruby 2.3+

Gemfile

@@ -1,8 +1,3 @@
 source 'https://rubygems.org'
 
 gemspec
-
-group :test do
-  gem 'rspec'
-  gem 'simplecov'
-end

Gemfile.lock

@@ -18,6 +18,7 @@ GEM
       ast (~> 2.4.0)
     psych (3.1.0)
     rainbow (3.0.0)
+    rake (13.0.3)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -52,9 +53,10 @@ PLATFORMS
 
 DEPENDENCIES
   cfn-model!
-  rspec
+  rake
+  rspec (~> 3.4)
   rubocop
-  simplecov
+  simplecov (~> 0.11)
 
 BUNDLED WITH
    2.2.3

cfn-model.gemspec

@@ -1,5 +1,3 @@
-require 'rake'
-
 Gem::Specification.new do |s|
   s.name          = 'cfn-model'
   s.license       = 'MIT'
@@ -16,13 +14,16 @@ Gem::Specification.new do |s|
     'homepage_uri'      => s.homepage,
     'source_code_uri'   => "#{s.homepage}/tree/v#{s.version}",
   }
-  s.files         = FileList[ 'lib/**/*.rb', 'lib/**/*.yml', 'lib/**/*.erb']
+  s.files         = Dir.glob([ 'lib/**/*.rb', 'lib/**/*.yml', 'lib/**/*.erb'])
 
   s.require_paths << 'lib'
 
   s.required_ruby_version = '>= 2.5.0'
 
-  s.add_development_dependency 'rubocop'
+  s.add_development_dependency('rake')
+  s.add_development_dependency('rspec', '~> 3.4')
+  s.add_development_dependency('rubocop')
+  s.add_development_dependency('simplecov', '~> 0.11')
 
   s.add_runtime_dependency('kwalify', '0.7.2')
   s.add_runtime_dependency('psych', '~> 3')