b64encode of arguments unnecessarily prints args to stdout. encode64 …

…does the same thing without cluttering stdout. http://www.ruby-doc.org/core/classes/Base64.html

lib/backgroundrb/bdrb_job_queue.rb

@@ -25,7 +25,7 @@ def self.find_next(worker_name,worker_key = nil)
 
   #these accessors get around any possible character encoding issues with the database
   def args=(args)
-    write_attribute(:args, Base64.b64encode(args))
+    write_attribute(:args, Base64.encode64(args))
   end
 
   def args