Add dotenv gem to dev dependencies to use .env file when loading tests

Author: Lawrence Oluyede

Rakefile

@@ -1,4 +1,5 @@
 # encoding: utf-8
+require 'dotenv/load'
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 

parse-ruby-client.gemspec

@@ -25,6 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'byebug' if RUBY_ENGINE == 'ruby'
   spec.add_development_dependency 'coveralls'
+  spec.add_development_dependency 'dotenv'
   spec.add_development_dependency 'fasterer'
   spec.add_development_dependency 'json', '~> 1.8.3'
   spec.add_development_dependency 'minitest'