fix return of double values from Java to native code on x86_32
fix return of double values from Java to native code on x86_32

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