Update PDF project file with DITAVAL profile
Update PDF project file with DITAVAL profile

- Based on feedback in DITA-OT Users list message
  https://groups.google.com/g/dita-ot-users/c/KT1_kiYgS6g/m/vHNeQ3CjAQAJ
- Restore default related links per 66784bc

(cherry picked from commit 6be28ee5257a2ddff1d2348b9bd68011dbae93d3)

Signed-off-by: Roger Sheen <a61a1add71dadc74037ae5e44ee30713db9a7451@infotexture.net>

dita-ot/docs