Merge branch 'master' of https://github.com/Snorby/delayed_job_data_m…

…apper into Snorby-master

* 'master' of https://github.com/Snorby/delayed_job_data_mapper:
  increase locked_by column size to fix issues with long hostnames crashing delayed_job worker. This has become a very common issue for our users of snorby.

lib/delayed/backend/data_mapper.rb

@@ -14,7 +14,7 @@ class Job
         property :handler,     Text, :lazy => false
         property :run_at,      Time, :index => :run_at_priority
         property :locked_at,   Time, :index => true
-        property :locked_by,   String
+        property :locked_by,   Text
         property :failed_at,   Time
         property :last_error,  Text
         property :queue,       String