add Post.is_post to differentiate posts and pages sans bias
add Post.is_post to differentiate posts and pages sans bias

where “bias” comes from being a draft, retired, or unpublished post.

Signed-off-by: Chris “Kwpolska” Warrick <de6f931166e131a07f31c96c765aee08f061d1a5@gmail.com>

berezovskyi/nikola,yamila-moreno/nikola,xuhdev/nikola,gwax/nikola,berezovskyi/nikola,xuhdev/nikola,andredias/nikola,x1101/nikola,immanetize/nikola,yamila-moreno/nikola,okin/nikola,x1101/nikola,masayuko/nikola,masayuko/nikola,okin/nikola,JohnTroony/nikola,jjconti/nikola,atiro/nikola,andredias/nikola,knowsuchagency/nikola,schettino72/nikola,getnikola/nikola,berezovskyi/nikola,getnikola/nikola,s2hc-johan/nikola,atiro/nikola,schettino72/nikola,getnikola/nikola,lucacerone/nikola,lucacerone/nikola,x1101/nikola,gwax/nikola,pluser/nikola,techdragon/nikola,s2hc-johan/nikola,masayuko/nikola,jjconti/nikola,immanetize/nikola,TyberiusPrime/nikola,gwax/nikola,techdragon/nikola,lucacerone/nikola,xuhdev/nikola,yamila-moreno/nikola,okin/nikola,pluser/nikola,jjconti/nikola,techdragon/nikola,getnikola/nikola,JohnTroony/nikola,wcmckee/nikola,s2hc-johan/nikola,wcmckee/nikola,pluser/nikola,wcmckee/nikola,xuhdev/nikola,immanetize/nikola,andredias/nikola,atiro/nikola,schettino72/nikola,knowsuchagency/nikola,knowsuchagency/nikola,okin/nikola,TyberiusPrime/nikola,TyberiusPrime/nikola,JohnTroony/nikola