Bump shoulda-matchers

Gemfile

@@ -290,9 +290,9 @@ group :test do
   # General helpers
 
   gem "factory_girl_rails", "4.8.0"
+  gem "shoulda-matchers",   "3.1.2"
   gem "timecop",            "0.9.1"
   gem "webmock",            "3.0.1", require: false
-  gem "shoulda-matchers",   "3.1.1"
 
   gem "diaspora_federation-test", "0.2.0"
 

Gemfile.lock

@@ -631,7 +631,7 @@ GEM
       useragent
     securecompare (1.0.0)
     shellany (0.0.1)
-    shoulda-matchers (3.1.1)
+    shoulda-matchers (3.1.2)
       activesupport (>= 4.0.0)
     sidekiq (4.2.10)
       concurrent-ruby (~> 1.0)
@@ -872,7 +872,7 @@ DEPENDENCIES
   rubyzip (= 1.2.1)
   sass-rails (= 5.0.6)
   secure_headers (= 3.6.7)
-  shoulda-matchers (= 3.1.1)
+  shoulda-matchers (= 3.1.2)
   sidekiq (= 4.2.10)
   sidekiq-cron (= 0.6.3)
   simple_captcha2 (= 0.4.3)