Database update

Closes #43 (closed) and can also delete multiple karas.

Closes #44 (closed)

inc/lektor/database.h

@@ -45,9 +45,6 @@ bool database_queue_get_current_file (volatile sqlite3 *db, char filepath[PATH_M
 
 bool database_get_kara_path(volatile sqlite3 *db, int id, char filepath[PATH_MAX]);
 
-/* Mpv and database synchronisation. */
-bool database_sync_mpv_state(volatile sqlite3 *db, mpv_handle **mpv);
-
 /* Update the database. */
 bool database_update              (volatile sqlite3 *db, const char *kara_dir, int check_timestamp);
 bool database_update_add          (volatile sqlite3 *db, const char *kara_path, struct kara_metadata *mdt, uint64_t id, bool avail);