fix subtle bug with track rendering exposed by BAM caching: if a track calls its loadSuccess callback immediately on load (i.e. without yielding), the genomeview won't be set up for it yet
fix subtle bug with track rendering exposed by BAM caching: if a track calls its loadSuccess callback immediately on load (i.e. without yielding), the genomeview won't be set up for it yet

GreggHelt2/apollo-test,erasche/jbrowse,nathandunn/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,SuLab/jbrowse,erasche/jbrowse,GreggHelt2/apollo-test,Arabidopsis-Information-Portal/jbrowse,Arabidopsis-Information-Portal/jbrowse,nathandunn/jbrowse,Arabidopsis-Information-Portal/jbrowse,GreggHelt2/apollo-test,erasche/jbrowse,limeng12/jbrowse,GreggHelt2/apollo-test,GMOD/jbrowse,Arabidopsis-Information-Portal/jbrowse,nathandunn/jbrowse,Arabidopsis-Information-Portal/jbrowse,limeng12/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GMOD/jbrowse,limeng12/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,SuLab/jbrowse,GreggHelt2/apollo-test,erasche/jbrowse,SuLab/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,Arabidopsis-Information-Portal/jbrowse,SuLab/jbrowse,SuLab/jbrowse,GreggHelt2/apollo-test,SuLab/jbrowse,limeng12/jbrowse,erasche/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,igemsoftware/Shenzhen_BGIC_0101_2013,SuLab/jbrowse,limeng12/jbrowse,limeng12/jbrowse,nathandunn/jbrowse,erasche/jbrowse,GMOD/jbrowse,limeng12/jbrowse,erasche/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,nathandunn/jbrowse,limeng12/jbrowse,GreggHelt2/apollo-test