Downgrade redis

Newer version requires Ruby 2.2.2

Author: nygrenh

Gemfile

@@ -25,6 +25,7 @@ gem 'xml-simple', '~> 1.1.1'
 gem 'hiredis' # Redis for caching
 # gem 'newrelic-redis' blocks new relic updates
 gem 'readthis' # Redis for caching
+gem 'redis', '~> 3.3.5'
 
 gem 'doorkeeper'
 gem 'gravtastic', '~> 3.2.6'

Gemfile.lock

@@ -246,7 +246,7 @@ GEM
     readthis (2.2.0)
       connection_pool (~> 2.1)
       redis (>= 3.0, < 5.0)
-    redis (4.0.1)
+    redis (3.3.5)
     representable (3.0.4)
       declarative (< 0.1.0)
       declarative-option (< 0.2.0)
@@ -394,6 +394,7 @@ DEPENDENCIES
   rails (~> 4.2.0)
   rake
   readthis
+  redis (~> 3.3.5)
   responders (~> 2.0)
   rest-client (~> 1.8.0)
   rspec (~> 3.5.0)