Attempt to fix HyDict#items for Python 3
Attempt to fix HyDict#items for Python 3

Looks like Python 3 changed `zip` to returning an iterable and not a
list. We should be good to just wrap the call in `list`.

tuturto/hy,freezas/hy,larme/hy,gilch/hy,tianon/hy,farhaven/hy,jakirkham/hy,tianon/hy,mtmiller/hy,paultag/hy,aisk/hy,Foxboron/hy,kirbyfan64/hy,tianon/hy,aisk/hy,larme/hy,michel-slm/hy,algernon/hy,timmartin/hy,larme/hy,zackmdavis/hy,Foxboron/hy,farhaven/hy,kirbyfan64/hy,kartikm/hy,farhaven/hy,aisk/hy,adamfeuer/hy,ALSchwalm/hy,Tritlo/hy