--CRM-15558, Fixed size of the civicrm_mailing_bounce_type.name field
--CRM-15558, fixing size of field in 4.5.alpha1.mysql.tpl to avoid truncate of custom bounce type name to char length of 12 during upgrade of 4.4.x to 4.5
Merge pull request #4510 from pradpnayak/CRM-15558

--CRM-15558, Fixed size of the civicrm_mailing_bounce_type.name field