- implement a BaseSearchIndexProvider for WirelessSettings - fix Context passed to the Index: now use an ApplicationContext - also use the correct Context when dealing with Settings SearchIndexProvider - also makes impossible a rogue BaseSearchIndexProvider to crash Settings if not well behaving - last, fix icon used for "NFC & more" search results Change-Id: I8b5cc999fa57a9e1977ee57394801d54cf3dbabb