changing namespacing to use methods for input id and name
Merge branch 'namespacing_fields' of github.com:voceconnect/voce-post-meta-media into namespacing_fields

* 'namespacing_fields' of github.com:voceconnect/voce-post-meta-media:
  changing to output name and id via methods instead of properties of the Voce_Meta_Field class