Merge branch 'update-mail-room' into 'master'

Update mail_room

See merge request !1213

Gemfile

@@ -273,6 +273,6 @@ gem "newrelic_rpm"
 
 gem 'octokit', '3.7.0'
 
-gem "mail_room", "~> 0.4.0"
+gem "mail_room", "~> 0.4.1"
 
 gem 'email_reply_parser'

Gemfile.lock

@@ -372,7 +372,7 @@ GEM
       systemu (~> 2.6.2)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
-    mail_room (0.4.0)
+    mail_room (0.4.1)
     method_source (0.8.2)
     mime-types (1.25.1)
     mimemagic (0.3.0)
@@ -808,7 +808,7 @@ DEPENDENCIES
   jquery-ui-rails
   kaminari (~> 0.15.1)
   letter_opener
-  mail_room (~> 0.4.0)
+  mail_room (~> 0.4.1)
   minitest (~> 5.3.0)
   mousetrap-rails
   mysql2