Experimental usage of getDeviceStorages, to be able to browse all the device storages available on the device
Fixes for browsing all the device storages available on the device :
- make the drop-down list bigger, and it should only appear if getDevicesStorages is available and gives at least 2 results
- fix the prefix stripping in file names : it shoudl be based on the storageName instead of a constant
Fix to return to the root of the device storage when switching to it
+ a few comments in the code
Merge pull request #10 from mossroy/master

Add the ability to browse all the device storages available on the device