renamed Activity::factory() to Activity::getInstance()
renamed Activity class to ActivityWorker
ActivityWorker::instances changed to static
renamed Decider class to DeciderWorker
activity worker no longer uses singleton instances
activity worker command accepts correct args
sdkcommand command print_r's response
decider worker class registers activities
config tree for activity namespace and dir
removed file comments
added base activity class
renamed activity to abstractactivity
removed activity
swf activities properly polled and assigned to mapped classes
added handling for activity history events