use utils.ask() in new_post; ask until valid answer
use utils.ask() in new_post; ask until valid answer

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

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