Added some synchronized calls to lock important resources properly
Moved everything from the start method to the main method to avoid the KVO nonsense for NSOperation
Removed delegate cruft from CDOperationQueue and Conductor
Continued cruft cleanup
Changed Conductor instance name to CDQueueController for clarity
Added proper response to cancel command for operations that haven't started yet
Minor refactor for readability
Added 'work' method that subclasses will override. Updated ConductorApp to have cool new way to visualize how it works
Fully switched over to using the work method
Fixed bug in sample app
Update README.md
Update README.md
Update README.md
Lotsa cleanup involving Progress observers
Updated README