Merge pull request #15 from Nexmo/update

Update Dependencies and Methods

.env.sample

@@ -1,7 +1,7 @@
 news_api_key=
 watson_api_key=
 watson_api_url=
-NEXMO_API_KEY=
-NEXMO_API_SECRET=
-NEXMO_WHATSAPP_NUMBER=
-NEXMO_APPLICATION_ID=
+VONAGE_API_KEY=
+VONAGE_API_SECRET=
+VONAGE_WHATSAPP_NUMBER=
+VONAGE_APPLICATION_ID=

.ruby-version

@@ -1 +1 @@
-2.5.3
+2.7.2

Gemfile

@@ -1,10 +1,10 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.5.3'
+ruby '2.7.2'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 5.2.3'
+gem 'rails', '~> 6.1.1'
 # Use postgresql as the database for Active Record
 gem 'pg', '>= 0.18', '< 2.0'
 # Use Puma as the app server
@@ -16,7 +16,7 @@ gem 'uglifier', '>= 1.3.0'
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'mini_racer', platforms: :ruby
 
-gem 'nexmo_rails'
+gem 'vonage_rails'
 gem 'news-api'
 gem 'ibm_watson'
 gem 'dotenv-rails'