Resequence ID3v1/2 fields in Options / Options / Tags

Resequenced ID3v2 fields so that they are together with ID3v1 fields
following - previously ID3v2 fields were split with an ID3v1 field
inbetween, This is less confusing to the user.
Merge branch 'master' of github.com:musicbrainz/picard into sophist_options_tags
run build_ui on ui/options_tags.ui