auto merge of #2086 : Ms2ger/servo/htmlelement-cast, r=jdm
auto merge of #2086 : Ms2ger/servo/htmlelement-cast, r=jdm


indykish/servo,tschneidereit/servo,j3parker/servo,GyrosOfWar/servo,larsbergstrom/servo,avadacatavra/servo,CJ8664/servo,upsuper/servo,huonw/servo,nnethercote/servo,shrenikgala/servo,pyfisch/servo,boghison/servo,caldwell/servo,fiji-flo/servo,evilpie/servo,thiagopnts/servo,mbrubeck/servo,cbrewster/servo,AnthonyBroadCrawford/servo,deokjinkim/servo,Shraddha512/servo,seanmonstar/servo,dmarcos/servo,pyecs/servo,indykish/servo,saneyuki/servo,karlito40/servo,saneyuki/servo,mattnenterprise/servo,zhangjunlei26/servo,jdramani/servo,cbrewster/servo,tschneidereit/servo,thiagopnts/servo,rixrix/servo,wpgallih/servo,RenaudParis/servo,s142857/servo,dsandeephegde/servo,j3parker/servo,meh/servo,kindersung/servo,zentner-kyle/servo,michaelwu/servo,anthgur/servo,dvberkel/servo,hyowon/servo,eddyb/servo,Shraddha512/servo,luniv/servo,AnthonyBroadCrawford/servo,dmarcos/servo,karlito40/servo,DominoTree/servo,dati91/servo,nerith/servo,aidanhs/servo,SimonSapin/servo,paulrouget/servo,mt2d2/servo,KiChjang/servo,indykish/servo,wpgallih/servo,srbhklkrn/SERVOENGINE,juzer10/servo,samfoo/servo,codemac/servo,thiagopnts/servo,DominoTree/servo,nick-thompson/servo,g-k/servo,tafia/servo,akosel/servo,saneyuki/servo,peterjoel/servo,froydnj/servo,mbrubeck/servo,rixrix/servo,rnestler/servo,dhananjay92/servo,juzer10/servo,huonw/servo,CJ8664/servo,boghison/servo,kindersung/servo,fiji-flo/servo,nnethercote/servo,g-k/servo,bjwbell/servo,anthgur/servo,notriddle/servo,bfrohs/servo,jimberlage/servo,michaelwu/servo,emilio/servo,indykish/servo,vks/servo,KiChjang/servo,jlegendary/servo,zhangjunlei26/servo,szeged/servo,WriterOfAlicrow/servo,canaltinova/servo,mukilan/servo,saneyuki/servo,cbrewster/servo,ruud-v-a/servo,SimonSapin/servo,caldwell/servo,aidanhs/servo,canaltinova/servo,peterjoel/servo,huonw/servo,karlito40/servo,pyfisch/servo,zhangjunlei26/servo,jgraham/servo,ConnorGBrewster/servo,luniv/servo,bjwbell/servo,nrc/servo,upsuper/servo,thiagopnts/servo,codemac/servo,jdramani/servo,jimberlage/servo,mdibaiee/servo,meh/servo,paulrouget/servo,wpgallih/servo,cbrewster/servo,mt2d2/servo,vks/servo,tempbottle/servo,avadacatavra/servo,sadmansk/servo,echochamber/servo,DominoTree/servo,bjwbell/servo,WriterOfAlicrow/servo,youprofit/servo,echochamber/servo,larsbergstrom/servo,jdramani/servo,anthgur/servo,g-k/servo,dagnir/servo,pyfisch/servo,snf/servo,luniv/servo,thiagopnts/servo,GreenRecycleBin/servo,szeged/servo,runarberg/servo,GyrosOfWar/servo,szeged/servo,GreenRecycleBin/servo,evilpie/servo,aidanhs/servo,mattnenterprise/servo,deokjinkim/servo,upsuper/servo,wpgallih/servo,chotchki/servo,AnthonyBroadCrawford/servo,splav/servo,nrc/servo,nick-thompson/servo,j3parker/servo,shrenikgala/servo,nick-thompson/servo,pgonda/servo,dati91/servo,tschneidereit/servo,chotchki/servo,cbrewster/servo,pyfisch/servo,tafia/servo,avadacatavra/servo,WriterOfAlicrow/servo,pyfisch/servo,jimberlage/servo,mdibaiee/servo,evilpie/servo,splav/servo,saratang/servo,AnthonyBroadCrawford/servo,sadmansk/servo,dsandeephegde/servo,walac/servo,dsandeephegde/servo,dsandeephegde/servo,steveklabnik/servo,zentner-kyle/servo,evilpie/servo,SimonSapin/servo,evilpie/servo,bjwbell/servo,nerith/servo,jlegendary/servo,samfoo/servo,rnestler/servo,huonw/servo,nrc/servo,canaltinova/servo,juzer10/servo,RenaudParis/servo,codemac/servo,tafia/servo,emilio/servo,emilio/servo,jimberlage/servo,RenaudParis/servo,avadacatavra/servo,sadmansk/servo,paulrouget/servo,larsbergstrom/servo,cbrewster/servo,fiji-flo/servo,ryancanhelpyou/servo,froydnj/servo,avadacatavra/servo,j3parker/servo,tafia/servo,zhangjunlei26/servo,bfrohs/servo,DominoTree/servo,jlegendary/servo,bjwbell/servo,eddyb/servo,eddyb/servo,shrenikgala/servo,brendandahl/servo,GreenRecycleBin/servo,dmarcos/servo,chotchki/servo,eddyb/servo,ryancanhelpyou/servo,avadacatavra/servo,dmarcos/servo,nnethercote/servo,notriddle/servo,GreenRecycleBin/servo,s142857/servo,nick-thompson/servo,aweinstock314/servo,dati91/servo,akosel/servo,dvberkel/servo,RenaudParis/servo,peterjoel/servo,mt2d2/servo,akosel/servo,ryancanhelpyou/servo,mukilan/servo,huonw/servo,canaltinova/servo,jimberlage/servo,hyowon/servo,saneyuki/servo,emilio/servo,GyrosOfWar/servo,codemac/servo,saneyuki/servo,larsbergstrom/servo,KiChjang/servo,KiChjang/servo,dsandeephegde/servo,g-k/servo,RenaudParis/servo,wpgallih/servo,RenaudParis/servo,aidanhs/servo,boghison/servo,ConnorGBrewster/servo,emilio/servo,fiji-flo/servo,jgraham/servo,zhangjunlei26/servo,nnethercote/servo,saratang/servo,eddyb/servo,dvberkel/servo,nrc/servo,wartman4404/servo,rentongzhang/servo,walac/servo,s142857/servo,pgonda/servo,bjwbell/servo,anthgur/servo,zentner-kyle/servo,larsbergstrom/servo,upsuper/servo,upsuper/servo,nick-thompson/servo,deokjinkim/servo,nick-thompson/servo,nnethercote/servo,brendandahl/servo,CJ8664/servo,A-deLuna/servo,tempbottle/servo,pyfisch/servo,Shraddha512/servo,nrc/servo,aweinstock314/servo,KiChjang/servo,tempbottle/servo,brendandahl/servo,peterjoel/servo,szeged/servo,ConnorGBrewster/servo,dvberkel/servo,srbhklkrn/SERVOENGINE,nerit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vo,vks/servo,szeged/servo,jgraham/servo,cbrewster/servo,aweinstock314/servo,froydnj/servo,dmarcos/servo,akosel/servo,mbrubeck/servo,WriterOfAlicrow/servo,eddyb/servo,ryancanhelpyou/servo,larsbergstrom/servo,nerith/servo,echochamber/servo,evilpie/servo,snf/servo,huonw/servo,AnthonyBroadCrawford/servo,saneyuki/servo,sadmansk/servo,jimberlage/servo,saratang/servo,pyecs/servo,mukilan/servo,dhananjay92/servo,mbrubeck/servo,vks/servo,peterjoel/servo,ConnorGBrewster/servo,canaltinova/servo,rixrix/servo,cbrewster/servo,DominoTree/servo,michaelwu/servo,runarberg/servo,dhananjay92/servo,larsbergstrom/servo,dvberkel/servo,jlegendary/servo,karlito40/servo,indykish/servo,aweinstock314/servo,samfoo/servo,aweinstock314/servo,rixrix/servo,CJ8664/servo,GyrosOfWar/servo,dagnir/servo,deokjinkim/servo,wartman4404/servo,meh/servo,GreenRecycleBin/servo,seanmonstar/servo,jimberlage/servo,meh/servo,luniv/servo,tschneidereit/servo,pgonda/servo,boghison/servo,saneyuki/servo,wartman4404/servo,mattnenterprise/servo,michaelwu/servo,CJ8664/servo,meh/servo,juzer10/servo,tafia/servo,mattnenterprise/servo,mt2d2/servo,saratang/servo,wartman4404/servo,rnestler/servo,paulrouget/servo,walac/servo,larsbergstrom/servo,karlito40/servo,echochamber/servo,CJ8664/servo,mt2d2/servo,karlito40/servo,j3parker/servo,srbhklkrn/SERVOENGINE,tafia/servo,pyecs/servo,rnestler/servo,dhananjay92/servo,pyfisch/servo,pgonda/servo,thiagopnts/servo,echochamber/servo,Adenilson/prototype-viewing-distance,mattnenterprise/servo,fiji-flo/servo,rnestler/servo,aidanhs/servo,Adenilson/prototype-viewing-distance,RenaudParis/servo,splav/servo,nnethercote/servo,fiji-flo/servo,jdramani/servo,pyecs/servo,szeged/servo,runarberg/servo,g-k/servo,brendandahl/servo,steveklabnik/servo,saratang/servo,echochamber/servo,boghison/servo,tempbottle/servo,fiji-flo/servo,seanmonstar/servo,j3parker/servo,WriterOfAlicrow/servo,nnethercote/servo,youprofit/servo,anthgur/servo,mdibaiee/servo,WriterOfAlicrow/servo,juzer10/servo,A-deLuna/servo,sadmansk/servo,codemac/servo,DominoTree/servo,A-deLuna/servo,peterjoel/servo,tempbottle/servo,karlito40/servo,runarberg/servo,aidanhs/servo,rnestler/servo,pyfisch/servo,szeged/servo,A-deLuna/servo,splav/servo,deokjinkim/servo