Continued working on the appSettings class and it's interaction with the MainViewController.
Merge branch 'master' of https://github.com/jahales/BIRD
Almost finished the Save as, save, and open functions, just need to call functions form the model.
Fixed properties loading.
Added neverBeenSaved, unsaved, presentWorkingFile and presentWorkingDirectory with getters and setters
Merge branch 'master' of https://github.com/jahales/BIRD