Basic fnctionality of autosave before running

TODO: Add preferences
      Improve UI
Added untitledAutoSave, autoSave to preferences
Commenting out untitledAutoSave
Done with adding autoSave to PDE X
Merged
Polishing up autosave implementation
More changes to auto-save

Removing status notices
Merge pull request #70 from joelmoniz/savePrompt

Added AutoSave feature as an enhancement