added documentation on ruby method to send info to dash
telling the AppDashboard when we remove instances in the AppController
properly doing HTTP deletes on AppDashboard, and not sending over info if no appservers were running
if multiple pids are bound to a port, only choosing one of them to kill
Merge pull request #594 from shatterednirvana/show-instance-info-in-appdashboard

Show instance info in appdashboard