Use ne_map_track_number_to_index in nestegg_get_cue_point (from https://bugzilla.mozilla.org/show_bug.cgi?id=832018)
Merge pull request #7 from sjhworkman/master

Use ne_map_track_number_to_index in nestegg_get_cue_point (from https://bugzilla.mozilla.org/show_bug.cgi?id=832018)