Pick up the StreamBlock definition from the model field, so that we don't need to pass it to the StreamFieldPanel constructor
Pick up the StreamBlock definition from the model field, so that we don't need to pass it to the StreamFieldPanel constructor

gasman/wagtail,serzans/wagtail,nimasmi/wagtail,kurtrwall/wagtail,Klaudit/wagtail,davecranwell/wagtail,zerolab/wagtail,mjec/wagtail,thenewguy/wagtail,stevenewey/wagtail,KimGlazebrook/wagtail-experiment,iansprice/wagtail,rv816/wagtail,zerolab/wagtail,quru/wagtail,mjec/wagtail,davecranwell/wagtail,hamsterbacke23/wagtail,kurtw/wagtail,Toshakins/wagtail,gasman/wagtail,darith27/wagtail,mixxorz/wagtail,Klaudit/wagtail,mjec/wagtail,bjesus/wagtail,Pennebaker/wagtail,bjesus/wagtail,Pennebaker/wagtail,Tivix/wagtail,mikedingjan/wagtail,mayapurmedia/wagtail,mayapurmedia/wagtail,hanpama/wagtail,jorge-marques/wagtail,taedori81/wagtail,Toshakins/wagtail,FlipperPA/wagtail,hanpama/wagtail,jordij/wagtail,kaedroho/wagtail,nutztherookie/wagtail,Tivix/wagtail,nimasmi/wagtail,jorge-marques/wagtail,FlipperPA/wagtail,mixxorz/wagtail,stevenewey/wagtail,wagtail/wagtail,taedori81/wagtail,mixxorz/wagtail,mephizzle/wagtail,mixxorz/wagtail,timorieber/wagtail,takeflight/wagtail,wagtail/wagtail,takeflight/wagtail,WQuanfeng/wagtail,nutztherookie/wagtail,mikedingjan/wagtail,takeflight/wagtail,FlipperPA/wagtail,timorieber/wagtail,tangentlabs/wagtail,hamsterbacke23/wagtail,WQuanfeng/wagtail,nrsimha/wagtail,dresiu/wagtail,thenewguy/wagtail,rsalmaso/wagtail,darith27/wagtail,stevenewey/wagtail,timorieber/wagtail,takeshineshiro/wagtail,mephizzle/wagtail,gasman/wagtail,iho/wagtail,inonit/wagtail,dresiu/wagtail,marctc/wagtail,nrsimha/wagtail,gogobook/wagtail,iansprice/wagtail,WQuanfeng/wagtail,janusnic/wagtail,jordij/wagtail,chrxr/wagtail,gogobook/wagtail,nimasmi/wagtail,rjsproxy/wagtail,KimGlazebrook/wagtail-experiment,jnns/wagtail,quru/wagtail,jorge-marques/wagtail,gasman/wagtail,wagtail/wagtail,chrxr/wagtail,nealtodd/wagtail,JoshBarr/wagtail,zerolab/wagtail,rv816/wagtail,jnns/wagtail,m-sanders/wagtail,thenewguy/wagtail,wagtail/wagtail,gogobook/wagtail,janusnic/wagtail,m-sanders/wagtail,mikedingjan/wagtail,JoshBarr/wagtail,nilnvoid/wagtail,bjesus/wagtail,nrsimha/wagtail,tangentlabs/wagtail,Klaudit/wagtail,taedori81/wagtail,mjec/wagtail,mephizzle/wagtail,nilnvoid/wagtail,jnns/wagtail,kaedroho/wagtail,davecranwell/wagtail,hamsterbacke23/wagtail,serzans/wagtail,thenewguy/wagtail,iansprice/wagtail,wagtail/wagtail,nrsimha/wagtail,rsalmaso/wagtail,mayapurmedia/wagtail,Pennebaker/wagtail,nutztherookie/wagtail,taedori81/wagtail,kaedroho/wagtail,rv816/wagtail,marctc/wagtail,torchbox/wagtail,davecranwell/wagtail,rjsproxy/wagtail,rsalmaso/wagtail,JoshBarr/wagtail,m-sanders/wagtail,serzans/wagtail,gogobook/wagtail,jorge-marques/wagtail,taedori81/wagtail,rjsproxy/wagtail,dresiu/wagtail,nealtodd/wagtail,mikedingjan/wagtail,darith27/wagtail,jordij/wagtail,m-sanders/wagtail,takeshineshiro/wagtail,torchbox/wagtail,timorieber/wagtail,rsalmaso/wagtail,rv816/wagtail,quru/wagtail,jorge-marques/wagtail,janusnic/wagtail,rsalmaso/wagtail,mixxorz/wagtail,iho/wagtail,Klaudit/wagtail,kurtw/wagtail,zerolab/wagtail,inonit/wagtail,marctc/wagtail,nilnvoid/wagtail,tangentlabs/wagtail,nealtodd/wagtail,jordij/wagtail,iho/wagtail,iho/wagtail,marctc/wagtail,nealtodd/wagtail,nimasmi/wagtail,hanpama/wagtail,WQuanfeng/wagtail,jnns/wagtail,JoshBarr/wagtail,bjesus/wagtail,thenewguy/wagtail,FlipperPA/wagtail,serzans/wagtail,hanpama/wagtail,nutztherookie/wagtail,kurtrwall/wagtail,Toshakins/wagtail,takeshineshiro/wagtail,Tivix/wagtail,KimGlazebrook/wagtail-experiment,mephizzle/wagtail,kurtrwall/wagtail,rjsproxy/wagtail,hamsterbacke23/wagtail,Toshakins/wagtail,darith27/wagtail,KimGlazebrook/wagtail-experiment,kaedroho/wagtail,kurtrwall/wagtail,takeflight/wagtail,dresiu/wagtail,quru/wagtail,stevenewey/wagtail,chrxr/wagtail,chrxr/wagtail,torchbox/wagtail,kurtw/wagtail,inonit/wagtail,iansprice/wagtail,mayapurmedia/wagtail,zerolab/wagtail,torchbox/wagtail,Tivix/wagtail,Pennebaker/wagtail,kurtw/wagtail,gasman/wagtail,takeshineshiro/wagtail,janusnic/wagtail,kaedroho/wagtail,dresiu/wagtail,tangentlabs/wagtail,inonit/wagtail,nilnvoid/wagtail