add_dependency instead of just for development

Author: jcain3389

vertex_client.gemspec

@@ -37,6 +37,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "activesupport"
+  spec.add_dependency "rack", "~> 2.2"
   spec.add_dependency "savon", ">= 2.11"
   spec.add_development_dependency "appraisal"
   spec.add_development_dependency "awesome_print"
@@ -46,7 +47,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "dotenv"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency "mocha"
-  spec.add_development_dependency "rack", "~> 2.2"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rails"
   spec.add_development_dependency "vcr"