[JOHNNYFIVE-62] Changed the behaviour of the Bluetooth. Now you can remain in the app with the Bluettoth disabled (previously you were kicked off). But if you call the RequestDialogList in order to show the devices available, the library ask the user to enable the Bluetooth, and saves if the user accepted enable the Bluetooth to do it directly when the user come back to the app before going out from the app. Solved a bug with the width of the dialog that appeared when solving another problem when there was not items in the Bluetooth devices available lists. Changed the name of the constants class, that still referred to Androidino. Updated the README files.