Add upgrade considerations note about admin/images URLs
Add upgrade considerations note about admin/images URLs

nrsimha/wagtail,hamsterbacke23/wagtail,Pennebaker/wagtail,Pennebaker/wagtail,chimeno/wagtail,jorge-marques/wagtail,mjec/wagtail,benjaoming/wagtail,gogobook/wagtail,mikedingjan/wagtail,JoshBarr/wagtail,kurtw/wagtail,JoshBarr/wagtail,wagtail/wagtail,iansprice/wagtail,gogobook/wagtail,nealtodd/wagtail,timorieber/wagtail,FlipperPA/wagtail,Klaudit/wagtail,hamsterbacke23/wagtail,jnns/wagtail,mikedingjan/wagtail,kaedroho/wagtail,rsalmaso/wagtail,inonit/wagtail,dresiu/wagtail,mayapurmedia/wagtail,thenewguy/wagtail,kurtrwall/wagtail,inonit/wagtail,kaedroho/wagtail,gasman/wagtail,mixxorz/wagtail,Toshakins/wagtail,Tivix/wagtail,kaedroho/wagtail,thenewguy/wagtail,100Shapes/wagtail,takeshineshiro/wagtail,benjaoming/wagtail,nrsimha/wagtail,mjec/wagtail,gasman/wagtail,darith27/wagtail,FlipperPA/wagtail,rjsproxy/wagtail,mixxorz/wagtail,bjesus/wagtail,willcodefortea/wagtail,rsalmaso/wagtail,marctc/wagtail,hanpama/wagtail,jnns/wagtail,takeshineshiro/wagtail,KimGlazebrook/wagtail-experiment,kurtrwall/wagtail,bjesus/wagtail,timorieber/wagtail,KimGlazebrook/wagtail-experiment,nutztherookie/wagtail,wagtail/wagtail,hamsterbacke23/wagtail,torchbox/wagtail,Pennebaker/wagtail,rv816/wagtail,rv816/wagtail,tangentlabs/wagtail,serzans/wagtail,rjsproxy/wagtail,jorge-marques/wagtail,hanpama/wagtail,iho/wagtail,hanpama/wagtail,rjsproxy/wagtail,benemery/wagtail,nealtodd/wagtail,takeshineshiro/wagtail,davecranwell/wagtail,stevenewey/wagtail,marctc/wagtail,WQuanfeng/wagtail,gasman/wagtail,nutztherookie/wagtail,nrsimha/wagtail,taedori81/wagtail,chrxr/wagtail,quru/wagtail,jordij/wagtail,jordij/wagtail,hanpama/wagtail,iho/wagtail,100Shapes/wagtail,tangentlabs/wagtail,jorge-marques/wagtail,benjaoming/wagtail,FlipperPA/wagtail,torchbox/wagtail,takeflight/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,nutztherookie/wagtail,benjaoming/wagtail,darith27/wagtail,Tivix/wagtail,m-sanders/wagtail,kurtw/wagtail,tangentlabs/wagtail,mephizzle/wagtail,mjec/wagtail,Klaudit/wagtail,KimGlazebrook/wagtail-experiment,mixxorz/wagtail,thenewguy/wagtail,janusnic/wagtail,Pennebaker/wagtail,darith27/wagtail,mephizzle/wagtail,m-sanders/wagtail,serzans/wagtail,dresiu/wagtail,zerolab/wagtail,nilnvoid/wagtail,gogobook/wagtail,wagtail/wagtail,hamsterbacke23/wagtail,chrxr/wagtail,thenewguy/wagtail,timorieber/wagtail,torchbox/wagtail,nilnvoid/wagtail,gasman/wagtail,100Shapes/wagtail,jorge-marques/wagtail,iansprice/wagtail,marctc/wagtail,Toshakins/wagtail,Toshakins/wagtail,benemery/wagtail,zerolab/wagtail,taedori81/wagtail,gasman/wagtail,zerolab/wagtail,JoshBarr/wagtail,bjesus/wagtail,torchbox/wagtail,iansprice/wagtail,rv816/wagtail,WQuanfeng/wagtail,mayapurmedia/wagtail,inonit/wagtail,mixxorz/wagtail,Tivix/wagtail,benemery/wagtail,Tivix/wagtail,kaedroho/wagtail,nilnvoid/wagtail,mayapurmedia/wagtail,takeflight/wagtail,benemery/wagtail,inonit/wagtail,mikedingjan/wagtail,willcodefortea/wagtail,WQuanfeng/wagtail,rsalmaso/wagtail,serzans/wagtail,davecranwell/wagtail,chimeno/wagtail,chrxr/wagtail,takeshineshiro/wagtail,mjec/wagtail,jordij/wagtail,mephizzle/wagtail,nutztherookie/wagtail,dresiu/wagtail,kurtw/wagtail,kurtw/wagtail,marctc/wagtail,janusnic/wagtail,wagtail/wagtail,Klaudit/wagtail,iho/wagtail,rv816/wagtail,nrsimha/wagtail,taedori81/wagtail,gogobook/wagtail,janusnic/wagtail,KimGlazebrook/wagtail-experiment,quru/wagtail,wagtail/wagtail,nilnvoid/wagtail,jnns/wagtail,m-sanders/wagtail,chimeno/wagtail,zerolab/wagtail,kurtrwall/wagtail,zerolab/wagtail,stevenewey/wagtail,m-sanders/wagtail,nimasmi/wagtail,serzans/wagtail,JoshBarr/wagtail,timorieber/wagtail,bjesus/wagtail,taedori81/wagtail,jordij/wagtail,nealtodd/wagtail,FlipperPA/wagtail,kurtrwall/wagtail,willcodefortea/wagtail,iho/wagtail,davecranwell/wagtail,jnns/wagtail,chimeno/wagtail,takeflight/wagtail,mixxorz/wagtail,taedori81/wagtail,Toshakins/wagtail,quru/wagtail,tangentlabs/wagtail,dresiu/wagtail,nealtodd/wagtail,iansprice/wagtail,thenewguy/wagtail,stevenewey/wagtail,kaedroho/wagtail,willcodefortea/wagtail,mikedingjan/wagtail,quru/wagtail,nimasmi/wagtail,Klaudit/wagtail,WQuanfeng/wagtail,chrxr/wagtail,davecranwell/wagtail,darith27/wagtail,jorge-marques/wagtail,mephizzle/wagtail,takeflight/wagtail,stevenewey/wagtail,chimeno/wagtail,mayapurmedia/wagtail,janusnic/wagtail,nimasmi/wagtail,rjsproxy/wagtail,nimasmi/wagtail,dresiu/wagtail