Improve versions in gemspec

Author: luisalima

outdatedbrowser_rails.gemspec

@@ -16,9 +16,9 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
 
-  s.add_dependency "rails", "~> 5.1.1"
+  s.add_dependency "rails", "~> 5.1"
 
   s.test_files = Dir["spec/**/*"]
-  s.add_development_dependency "capybara"
-  s.add_development_dependency "rspec-rails"
+  s.add_development_dependency "capybara", "~> 2.14"
+  s.add_development_dependency "rspec-rails", "~> 3"
 end