* AndroidManifest.xml: Register `DVDroidActivity' as searchable.
* res/drawable-hdpi/menu_search.png:
* res/drawable-mdpi/menu_search.png: New icons.
* res/menu/main_activity.xml: Add a search icon to the main activity's
action menu.
* res/values/strings.xml: Add strings "search_hint" and "menu_search".
* res/xml/searchable.xml: New configuration file.
* src/ryuslash/org/dvdroid/DVDDataSource.java (getQuery): New
function.
* src/ryuslash/org/dvdroid/DVDroidActivity.java (getData): New
overload, calls `getQuery' to search for something instead of
everything.
(onCreate): If a search has been started, search, don't just show
everything.
(onCreateOptionsMenu): Instantiate the `SearchView' in order to use
it.
