Start navigation refinement

[djdiskmachine]

Break up 2 of issue #58

In o-beta-2 the sample navigation was changed, pressing and holding start enables previewing while navigating as well as loading.
This affects A button behavior as well, consider restoring previous behavior.

I'm not 100% happy with the feel of holding start while navigating folders, consider this a placeholder for tuning this behavior.
(need to press right to load folder?)
Start + left should go back to the same place in the above folder, not to the top.

Take the opportunity to add exiting the sample browser with B
"Alternatively, B first takes the user up the directories to the root of the sample library before selecting the "EXIT" button."
Does this mean it is required to press B twice to select the exit button?
I'd personally vote for simply exiting the browser when pressing B.

[Ekolide]

Does this mean it is required to press B twice to select the exit button?

As I presented the idea: Yes, or however many times that is needed to go up the directory structure. The user could be navigating samplelib/Drums/BigDrums/RoomyKit

So pressing B would take you to samplelib/Drums/BigDrums, etc. etc. Until hitting samplelib/, then prompting the user for "Exit".

I'd personally vote for simply exiting the browser when pressing B.

I agree as long as there is a quick way to navigate up the file structure. START+LEFT might be suitable, though would these sort of commands make sense to be user-mappable?

Edit: Actually I don't know if I think START+LEFT is suitable. This would depend on how it interacts with starting and stopping playback.