Merge pull request #91 from devnacho/update-ruby-rails-versions

Update ruby and rails version matrix

.travis.yml

@@ -1,14 +1,12 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.3.8
-  - 2.4.5
-  - 2.5.3
+  - 2.5.7
+  - 2.6.6
+  - 2.7.1
 
 env:
-  - "RAILS_VERSION=4.2.11"
   - "RAILS_VERSION=5.0.7"
-  - "RAILS_VERSION=5.1.6"
-  - "RAILS_VERSION=5.2.0"
-  - "RAILS_VERSION=5.2.1"
-  - "RAILS_VERSION=5.2.2"
+  - "RAILS_VERSION=5.1.7"
+  - "RAILS_VERSION=5.2.4"
+  - "RAILS_VERSION=6.0.3"

Gemfile

@@ -10,12 +10,13 @@ rails = case rails_version
         when "master"
           { github: "rails/rails" }
         when "default"
-          ">= 4.2.0"
+          ">= 6.0.0"
         else
           "~> #{rails_version}"
         end
 
 gem "rails", rails
+gem "sprockets", "~> 3.0"
 
 # Declare any dependencies that are still in development here instead of in
 # your gemspec. These might include edge Rails or gems from your path or