Merge pull request #54 from amatsuda/subject_helper_regexp_fix

Fix regexp in without_list_prefix helper to match shorter

Author: amatsuda

app/helpers/messages_helper.rb

@@ -1,6 +1,6 @@
 module MessagesHelper
     def without_list_prefix(subject)
-        subject.sub(/^\[.+\]\s*/, '')
+        subject.sub(/^\[.+?\]\s*/, '')
     end
 
     MARGIN = 50