Merge pull request #155 from samvera/remove_4.2_support

Remove 4.2 support

.travis.yml

@@ -1,12 +1,14 @@
 language: ruby
 sudo: false
 rvm:
-  - 2.4.0
+  - 2.3.5
+  - 2.4.2
 env:
   global:
     - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
   matrix:
-    - "RAILS_VERSION=5.0.1"
+    - "RAILS_VERSION=5.0.6"
+    - "RAILS_VERSION=5.1.4"
 
 before_install:
   - gem update --system

README.md

@@ -634,11 +634,12 @@ Commit your features into a new branch and submit a pull request.
 
 ## Compatibility
 
-Currently, it is compatible with Rails 4.0 and 4.1 under both Ruby 2.0 and 2.1.
+* Ruby 2.4 or the latest 2.3 version is recommended.  Later versions may also work.
+* Rails 5 is required. We recommend the latest Rails 5.0 release.
 
 # Help
 
-For help with Questioning Authority, contact <hydra[email protected]>.
+For help with Questioning Authority, contact <samvera[email protected]>.
 
 ### Special thanks to...
 

qa.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "LICENSE", "Rakefile", "README.md"]
   s.test_files = Dir["spec/**/*"]
 
-  s.add_dependency "rails", ">= 4.2.0", "< 6.0"
+  s.add_dependency "rails", "~> 5.0"
   s.add_dependency "faraday"
   s.add_dependency "nokogiri", "~> 1.6"
   s.add_dependency "activerecord-import"