Suppor sending in a config array to run method.
Add support for class prefix in GearmanPearManager
Adding class_name to the function config

This allows it to be used later in the job worker.
Default to Net_Gearman_Job_ if no other prefix
Merge pull request #91 from jpirkey/jpirkey-add-job-class-prefix-support-to-pear-manager

Add job class prefix support to pear manager