updated excon and heroku-api gems
updated excon and heroku-api gems

Faisalawanisee/heroku,gregburek/heroku,Faisalawanisee/heroku,dickeyxxx/heroku,rkh/heroku,vcgato29/heroku,macedo/heroku,dickeyxxx/heroku,macedo/heroku,dickeyxxx/heroku,rkh/heroku,duypq94/heroku,vcgato29/heroku,macedo/heroku,greeca0204/heroku,rkh/heroku,duypq94/heroku,sancopanco/heroku,greeca0204/heroku,sancopanco/heroku,duypq94/heroku,vcgato29/heroku,greeca0204/heroku,sancopanco/heroku,gregburek/heroku,gregburek/heroku,Faisalawanisee/heroku