McLuhan 2.10.5

Minor changes

• Add shapeshifter support to McLuhan Theme #705 : #711
• Add Sorts Mill Goudy as serif typeface #705 : #711
• Add New Athena Unicode typeface pressbooks/ideas#329 : #715
• Add 'Musical Notation' language script #706 : ##711
• Restore visibility of 'edit link' when navigation is suppressed pressbooks/ideas#331 : #714

Patches

• Fix styling of glossary-term in export routines pressbooks/ideas#327 : #713, #716
• Fix styling of image caption in PDF export #699 : #718