Add warning when removing a node from a container of which it is not a child.
Add warning when removing a node from a container of which it is not a child.

ikeagold/polymer,jscissr/polymer,MartinMoizard/polymer,elkamel/polymer,jscissr/polymer,simo97/polymer,simo97/polymer,jvkops/polymer,HiWong/polymer,yforrest/polymer,gazal-k/polymer,elkamel/polymer,fjkfwz/polymer,codegist/polymer,marcus7777/polymer,yforrest/polymer,fjkfwz/polymer,ThiagoGarciaAlves/polymer,ankurvr/polymer,samccone/polymer,thiagolucio/polymer,marcus7777/polymer,BrianLTJ/polymer,ktiedt/polymer,filaraujo/polymer,rafaelducati/polymer,studiowangfei/polymer,dalong123/polymer,paulballesty/polymer,codegist/polymer,gronke/polymer,Flip120/polymer,henrylee2cn/polymer,YOTOV-LIMITED/polymer,ktiedt/polymer,brandonmowat/polymer,jvkops/polymer,kristianmandrup/polymer,JeremybellEU/polymer,YOTOV-LIMITED/polymer,simonfan/polymer,jpalomar/polymer,thiagolucio/polymer,youprofit/polymer,Litor/polymer,itnirmaan/polymer,jvkops/polymer,tekjava/polymer,jordanyaker/polymer,vic/polymer,studiowangfei/polymer,Flip120/polymer,zxs0827/polymer,MetaMemoryT/polymer,akintoey/polymer,chimpinano/polymer,gronke/polymer,YOTOV-LIMITED/polymer,BrianLTJ/polymer,HiWong/polymer,filaraujo/polymer,Litor/polymer,youprofit/polymer,mauricionr/polymer,Tudes/polymer,rafaelducati/polymer,cgvarela/polymer,exlerdesigns/polymer,MetaMemoryT/polymer,mgiuffrida/polymer,carbono-io/polymer,TedaLIEz/polymer,exlerdesigns/polymer,tekjava/polymer,henrylee2cn/polymer,cgvarela/polymer,ankurvr/polymer,jordanyaker/polymer,jpalomar/polymer,udhayam/polymer,tjsavage/polymer,MartinMoizard/polymer,Polymer/polymer,pacificIT/polymer,mgiuffrida/polymer,ilovezy/polymer,Kabele/polymer,samccone/polymer,jforge/polymer,gazal-k/polymer,cbmeeks/polymer,Endika/polymer,Zagorakiss/polymer,BrianLTJ/polymer,jforge/polymer,chimpinano/polymer,JeremybellEU/polymer,ilovezy/polymer,bright-sparks/polymer,tachyon1337/polymer,zxs0827/polymer,JsonChiu/polymer,simonsoft/polymer,paulballesty/polymer,MartinsThiago/polymer,Endika/polymer,TedaLIEz/polymer,akintoey/polymer,Endika/polymer,pacificIT/polymer,Litor/polymer,dalong123/polymer,henrylee2cn/polymer,carbono-io/polymer,bright-sparks/polymer,simonfan/polymer,MartinsThiago/polymer,Tudes/polymer,yforrest/polymer,ikeagold/polymer,chimpinano/polymer,MartinsThiago/polymer,tekjava/polymer,jordanyaker/polymer,Polymer/polymer,yangjae/polymer,M4gn4tor/polymer,japacible/polymer,MartinMoizard/polymer,ThiagoGarciaAlves/polymer,sekiyaeiji/polymer,akintoey/polymer,jscissr/polymer,vic/polymer,tjsavage/polymer,carbono-io/polymer,exlerdesigns/polymer,dotDeeka/polymer,cgvarela/polymer,brandonmowat/polymer,kristianmandrup/polymer,dalong123/polymer,JeremybellEU/polymer,itnirmaan/polymer,bright-sparks/polymer,japacible/polymer,elkamel/polymer,udhayam/polymer,filaraujo/polymer,simo97/polymer,tjsavage/polymer,JsonChiu/polymer,Zagorakiss/polymer,leitzler/polymer,mauricionr/polymer,Kabele/polymer,thiagolucio/polymer,M4gn4tor/polymer,cbmeeks/polymer,fjkfwz/polymer,jpalomar/polymer,sekiyaeiji/polymer,mgiuffrida/polymer,leitzler/polymer,cbmeeks/polymer,tachyon1337/polymer,Tudes/polymer,yangjae/polymer,kristianmandrup/polymer,zxs0827/polymer,zebMcCorkle/polymer,zebMcCorkle/polymer,ikeagold/polymer,gazal-k/polymer,simonsoft/polymer,udhayam/polymer,pacificIT/polymer,dotDeeka/polymer,gronke/polymer,HiWong/polymer,ktiedt/polymer,Polymer/polymer,simonfan/polymer,itnirmaan/polymer,samccone/polymer