Issue #1694026 by sandykadam, joachim: Fis docs in hook_field_attach_delete_bundle()
Issue #2181809 by davidneedham, Les Lim: Fix bullet list in README file
Issue #2188289 by Jaypan, sun, Berdir: Fix docs for drupal_get_token()
Issue #1796500 by sandykadam: Fix docs for hook_field_attach_validate()