Gramps-web

Minor changes; style improvements on mobile; new docker images.

New features:

- Table of parent places added to place view
- Allow adding, editing, deleting parent place references
- Table of repository references added to source view
- Allow adding/deleting repository references
- Table of alternative names added to person view
- Allow editing, deleting, adding alternative names to person
- Allow editing person's gender

New features:

- Tag objects (e.g. people) in photos (50)
- Add links to URLs or Gramps objects in note rich text editor (46)

Fix small regression

- Allow changing order of media objects (55)
- Share an existing citation (56)
- Edit citation details: page, confidence, date (58)
- Show link to latest blog post on dashboard

New feature: treat any media object as a historical map by adding geographical coordinate bounds as Gramps attribute. The image is overlayed in the map view. Editing the media object, the overlay can be shifted/scaled directly in the map view.