* Rename LANG_RESET_ASK to LANG_ARE_YOU_SURE,
so that it matches the actual language string
(translations remain valid), and can be repurposed
for generic confirmation prompts, where the
first line says "Are you sure?", and the second
line reiterates the selected action
* Add "Reset Settings" as second line to the prompt
shown before resetting settings, instead of just
asking "Are you sure?"
* Make Shuffle prompt consistent between WPS and
Playlist Viewer, and ask whether user is sure they
want to Shuffle instead of warning them that the
current playlist will be erased, which was a bit
misleading
* Explicitly say "Cancelled" when user answers NO to
erasing the current playlist or to overwriting a file.
Improves consistency with other prompts that are
displayed for potentially destructive actions, e.g.
before items are deleted, renamed, saved, or reset.
* PictureFlow: Prompt before rebuilding/updating cache
Change-Id: Id8ae36db7187315eb1a374701307e6ab4dcdbd1d
