Releases for Field tools

Added VERY experimental import/export of field config as YAML.

Changes since 8.x-1.0-alpha3:

Changes since 8.x-1.0-alpha1:

Changes since 7.x-1.0-alpha7:

• #1763886 by BWPanda: Fixed comment tools tabs are indistinguishable from node tools tabs.
• by joachim: Added recommendation for GraphAPI engine to README.
• by joachim: Added titles and colours to graph edges.
• by joachim: Added support for entity schema properties that refer to other entities.
• by joachim: Added admin page showing graph of entity relationships from reference fields.

Changes since 7.x-1.0-alpha5:

• #2155531 by rudins: Fixed fatal error on bundle field admin UI when DS or other module changing columns is present.
• by joachim: Changed array manipulation in hook_help() to be simpler.
• by joachim: Fixed omission in README.
• by joachim: Fixed instance mass edit form not redirecting to main admin page.
• by joachim: Fixed forms to use form_load_include().
• by joachim: Fixed strict warning in array_shift().

Changes since 7.x-1.0-alpha3:

• by joachim: Fixed entity types that aren't fieldable showing in UI options.
• #1944610 by joachim: Fixed Features in 'Needs Review' status breaking Manage Fields admin pages.

Changes since 7.x-1.0-alpha1:

• by joachim: Fixed clone form page arguments broken for field admin paths that are per-bundle, such as Commerce product.
• by joachim: Fixed error message on modules admin page from hook_help().
• #1604704 by tedbow: Added form to clone fields from various bundles into the current bundle.
• #1604768 by tedbow: Fixed lack of check that fields aren't restricted to certain entity types.