update sidekiq

Gemfile

@@ -12,7 +12,7 @@ gem 'twitter-bootstrap-rails', '2.0.7'
 gem 'therubyracer', :platform => :ruby
 gem 'will_paginate'
 gem 'bootstrap-will_paginate'
-gem "sidekiq", "~> 2.6.5"
+gem "sidekiq", '~> 2.12.3'
 gem 'rest-client'
 gem 'sinatra', require: false
 gem 'slim'

Gemfile.lock

@@ -52,8 +52,7 @@ GEM
       rack-test (>= 0.5.4)
       selenium-webdriver (~> 2.0)
       xpath (~> 1.0.0)
-    celluloid (0.12.4)
-      facter (>= 1.6.12)
+    celluloid (0.14.1)
       timers (>= 1.0.0)
     childprocess (0.3.6)
       ffi (~> 1.0, >= 1.0.6)
@@ -66,7 +65,7 @@ GEM
       execjs
     coffee-script-source (1.4.0)
     commonjs (0.2.6)
-    connection_pool (1.0.0)
+    connection_pool (1.1.0)
     daemons (1.1.9)
     database_cleaner (0.9.1)
     diff-lcs (1.1.3)
@@ -77,7 +76,6 @@ GEM
     eventmachine (1.0.0)
     execjs (1.4.0)
       multi_json (~> 1.0)
-    facter (1.6.17)
     factory_girl (4.1.0)
       activesupport (>= 3.0.0)
     factory_girl_rails (4.1.0)
@@ -131,7 +129,7 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.1)
     mime-types (1.21)
-    multi_json (1.5.1)
+    multi_json (1.7.6)
     multipart-post (1.1.5)
     mysql2 (0.3.11)
     net-scp (1.1.1)
@@ -188,8 +186,8 @@ GEM
       ffi (>= 0.5.0)
     rdoc (3.12.1)
       json (~> 1.4)
-    redis (3.0.2)
-    redis-namespace (1.2.1)
+    redis (3.0.4)
+    redis-namespace (1.3.0)
       redis (~> 3.0.0)
     rest-client (1.6.7)
       mime-types (>= 1.16)
@@ -222,11 +220,11 @@ GEM
     sextant (0.2.2)
       activesupport (>= 3.2)
       rails (>= 3.2)
-    sidekiq (2.6.5)
-      celluloid (~> 0.12.0)
-      connection_pool (~> 1.0)
-      multi_json (~> 1)
-      redis (~> 3)
+    sidekiq (2.12.3)
+      celluloid (>= 0.14.1)
+      connection_pool (>= 1.0.0)
+      json
+      redis (>= 3.0)
       redis-namespace
     simple_oauth (0.1.9)
     sinatra (1.3.3)
@@ -314,7 +312,7 @@ DEPENDENCIES
   rspec-rails
   sass-rails (~> 3.2.3)
   sextant
-  sidekiq (~> 2.6.5)
+  sidekiq (~> 2.12.3)
   sinatra
   slim
   sqlite3