clarify Continuations.java JavaDoc comment
clarify Continuations.java JavaDoc comment

minor-jason/avian,getlantern/avian,ucdseniordesign/avian,lostdj/avian,MaartenR/avian,bgould/avian,joshuawarner32/avian,getlantern/avian,bigfatbrowncat/avian-pack.avian,bgould/avian,dicej/avian,bgould/avian,marcinolawski/avian,lwahlmeier/avian,joshuawarner32/avian,lwahlmeier/avian,minor-jason/avian,marcinolawski/avian,badlogic/avian,dicej/avian,getlantern/avian,bigfatbrowncat/avian-pack.avian,joshuawarner32/avian,dicej/avian,lwahlmeier/avian,badlogic/avian,MaartenR/avian,getlantern/avian,marcinolawski/avian,MaartenR/avian,badlogic/avian,badlogic/avian,marcinolawski/avian,lwahlmeier/avian,minor-jason/avian,MaartenR/avian,lostdj/avian,lostdj/avian,bgould/avian,joshuawarner32/avian,ucdseniordesign/avian,ucdseniordesign/avian,lostdj/avian,bigfatbrowncat/avian-pack.avian,bigfatbrowncat/avian-pack.avian,dicej/avian,minor-jason/avian,ucdseniordesign/avian