Temporarily use a branch of Redmon gem, until pull request is accepted.

This fixes an error with unkown method #connect in UpdateRedisCacheStatsWorker#perform with redis gem 4.0 and above.

Gemfile

@@ -67,7 +67,7 @@ gem 'sidekiq-cron'
 gem 'sidekiq-superworker'
 
 # Web GUI for Redis instances
-gem 'redmon'
+gem 'redmon', git: 'https://github.com/amatriain/redmon.git', branch: 'fix-redis-connect'
 # Authorization management
 
 gem 'cancancan'

Gemfile.lock

@@ -1,3 +1,20 @@
+GIT
+  remote: https://github.com/amatriain/redmon.git
+  revision: fb166f4d7156cc506f958564772bd3794bd90b09
+  branch: fix-redis-connect
+  specs:
+    redmon (0.0.13)
+      eventmachine
+      haml
+      hiredis
+      i18n
+      json
+      mixlib-cli
+      rack
+      redis
+      sinatra
+      thin
+
 GIT
   remote: https://github.com/amatriain/rest-client-components.git
   revision: 236ac31ed1a061d479332ff179bf78fcb11edb74
@@ -303,17 +320,6 @@ GEM
       redis-store (>= 1.2, < 2)
     redis-store (1.4.1)
       redis (>= 2.2, < 5)
-    redmon (0.0.13)
-      eventmachine
-      haml
-      hiredis
-      i18n
-      json
-      mixlib-cli
-      rack
-      redis
-      sinatra
-      thin
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
@@ -479,7 +485,7 @@ DEPENDENCIES
   rails (~> 5.1.4)
   rails-controller-testing
   redis-rails
-  redmon
+  redmon!
   responders
   rest-client
   rest-client-components!