Removes deprecated and commented code, updates Fragments referencing and access
Adds "Create" menu item in solo mode

FIX trying to hide groups menu in GroupsHistory (no menu at all)
Ends up ListViews conversion to Fragments (beta tests are successfull)

Each the local and the remote playlists lists are functionnal. Creating a new
playlist, saving it to the device, remove it from device are working quiet well.
Removing form the remote list is buggy, to be fixed soon.

A "+" button is added in the action bar to allow creating new playlists.

Else, the code of the SoloPlaylists* is cleaned, a lot of commented code is
removed.
FIX optionMenu and contextMenus in solo mode

Restores the click handling on option menu items, prevented during a previous
refactoring.
Refactorizes the solo playlists context menus to one single xml file.
FIX wrong onContextItemSelected call from a fragment.