ORKStepHeaderView: fix issue in which constraints were not correctly updated for the after moving to a new window
ORKStepHeaderView: fix issue in which constraints were not correctly updated for the after moving to a new window

boland25/ResearchKit,boland25/ResearchKit,allen7wang/ResearchKit,cornelltech/ResearchKit,chb/ResearchKit,chb/ResearchKit,allen7wang/ResearchKit,jimmyti/ResearchKit,weijentu/ResearchKit,QuintilesRK/ResearchKit,DrGo/ResearchKit,weijentu/ResearchKit,umerkhan-apple/ResearchKit,weijentu/ResearchKit,YuanZhu-apple/ResearchKit,md0u80c9/ResearchKit,jeremiahyan/ResearchKit,YuanZhu-apple/ResearchKit,jimmyti/ResearchKit,YuanZhu-apple/ResearchKit,DrGo/ResearchKit,jeremiahyan/ResearchKit,umerkhan-apple/ResearchKit,md0u80c9/ResearchKit,cornelltech/ResearchKit,oliverschaefer/ResearchKit,QuintilesRK/ResearchKit,mluedke2/ResearchKit,md0u80c9/ResearchKit,mluedke2/ResearchKit,oliverschaefer/ResearchKit,KaiCode2/ResearchKit,danoli3/ResearchKit,oliverschaefer/ResearchKit,chb/ResearchKit,weijentu/ResearchKit,mluedke2/ResearchKit,md0u80c9/ResearchKit,shazino/ResearchKit,shazino/ResearchKit,danoli3/ResearchKit,YuanZhu-apple/ResearchKit,boland25/ResearchKit,jarrelscy/ResearchKit,jimmyti/ResearchKit,KaiCode2/ResearchKit,boland25/ResearchKit,chb/ResearchKit,jarrelscy/ResearchKit,cornelltech/ResearchKit,shazino/ResearchKit,KaiCode2/ResearchKit,allen7wang/ResearchKit,danoli3/ResearchKit,umerkhan-apple/ResearchKit,oliverschaefer/ResearchKit,jarrelscy/ResearchKit,jeremiahyan/ResearchKit,QuintilesRK/ResearchKit,DrGo/ResearchKit