Use Ref/RefMut::map rather than transmute for ServoLayoutNode.
Use Ref/RefMut::map rather than transmute for ServoLayoutNode.

thiagopnts/servo,mbrubeck/servo,upsuper/servo,mbrubeck/servo,peterjoel/servo,peterjoel/servo,pyfisch/servo,larsbergstrom/servo,emilio/servo,dsandeephegde/servo,CJ8664/servo,cbrewster/servo,canaltinova/servo,paulrouget/servo,rnestler/servo,larsbergstrom/servo,emilio/servo,emilio/servo,notriddle/servo,eddyb/servo,nrc/servo,pyfisch/servo,szeged/servo,saneyuki/servo,notriddle/servo,dsandeephegde/servo,anthgur/servo,rnestler/servo,nrc/servo,avadacatavra/servo,upsuper/servo,szeged/servo,CJ8664/servo,sadmansk/servo,saneyuki/servo,rnestler/servo,mbrubeck/servo,upsuper/servo,thiagopnts/servo,upsuper/servo,SimonSapin/servo,jimberlage/servo,DominoTree/servo,dati91/servo,avadacatavra/servo,jimberlage/servo,jimberlage/servo,dati91/servo,splav/servo,dati91/servo,rnestler/servo,jimberlage/servo,paulrouget/servo,eddyb/servo,rnestler/servo,nnethercote/servo,pyfisch/servo,jimberlage/servo,KiChjang/servo,avadacatavra/servo,pyfisch/servo,mbrubeck/servo,emilio/servo,canaltinova/servo,eddyb/servo,paulrouget/servo,avadacatavra/servo,sadmansk/servo,larsbergstrom/servo,upsuper/servo,sadmansk/servo,szeged/servo,eddyb/servo,canaltinova/servo,dsandeephegde/servo,ConnorGBrewster/servo,larsbergstrom/servo,mbrubeck/servo,CJ8664/servo,cbrewster/servo,DominoTree/servo,splav/servo,dsandeephegde/servo,splav/servo,KiChjang/servo,DominoTree/servo,fiji-flo/servo,splav/servo,nnethercote/servo,nrc/servo,sadmansk/servo,ConnorGBrewster/servo,emilio/servo,splav/servo,nnethercote/servo,ConnorGBrewster/servo,pyfisch/servo,splav/servo,cbrewster/servo,larsbergstrom/servo,eddyb/servo,sadmansk/servo,nnethercote/servo,pyfisch/servo,ConnorGBrewster/servo,SimonSapin/servo,nrc/servo,canaltinova/servo,notriddle/servo,szeged/servo,splav/servo,CJ8664/servo,mbrubeck/servo,fiji-flo/servo,rnestler/servo,paulrouget/servo,nrc/servo,eddyb/servo,canaltinova/servo,thiagopnts/servo,paulrouget/servo,emilio/servo,nnethercote/servo,larsbergstrom/servo,eddyb/servo,jimberlage/servo,mattnenterprise/servo,KiChjang/servo,nnethercote/servo,dsandeephegde/servo,nrc/servo,emilio/servo,saneyuki/servo,paulrouget/servo,KiChjang/servo,SimonSapin/servo,rnestler/servo,cbrewster/servo,SimonSapin/servo,fiji-flo/servo,mattnenterprise/servo,jimberlage/servo,peterjoel/servo,peterjoel/servo,szeged/servo,SimonSapin/servo,szeged/servo,thiagopnts/servo,mattnenterprise/servo,larsbergstrom/servo,upsuper/servo,cbrewster/servo,DominoTree/servo,nnethercote/servo,cbrewster/servo,larsbergstrom/servo,emilio/servo,paulrouget/servo,anthgur/servo,splav/servo,mattnenterprise/servo,larsbergstrom/servo,SimonSapin/servo,nnethercote/servo,dati91/servo,fiji-flo/servo,dsandeephegde/servo,szeged/servo,pyfisch/servo,fiji-flo/servo,notriddle/servo,ConnorGBrewster/servo,fiji-flo/servo,notriddle/servo,mattnenterprise/servo,canaltinova/servo,DominoTree/servo,upsuper/servo,DominoTree/servo,dati91/servo,szeged/servo,KiChjang/servo,jimberlage/servo,KiChjang/servo,saneyuki/servo,ConnorGBrewster/servo,pyfisch/servo,notriddle/servo,fiji-flo/servo,peterjoel/servo,KiChjang/servo,eddyb/servo,notriddle/servo,KiChjang/servo,CJ8664/servo,paulrouget/servo,mattnenterprise/servo,paulrouget/servo,peterjoel/servo,thiagopnts/servo,thiagopnts/servo,anthgur/servo,canaltinova/servo,saneyuki/servo,saneyuki/servo,notriddle/servo,saneyuki/servo,saneyuki/servo,fiji-flo/servo,splav/servo,sadmansk/servo,thiagopnts/servo,nnethercote/servo,saneyuki/servo,CJ8664/servo,DominoTree/servo,KiChjang/servo,DominoTree/servo,dsandeephegde/servo,anthgur/servo,saneyuki/servo,ConnorGBrewster/servo,peterjoel/servo,szeged/servo,cbrewster/servo,mbrubeck/servo,cbrewster/servo,avadacatavra/servo,mbrubeck/servo,avadacatavra/servo,pyfisch/servo,anthgur/servo,mattnenterprise/servo,thiagopnts/servo,SimonSapin/servo,ConnorGBrewster/servo,canaltinova/servo,peterjoel/servo,peterjoel/servo,splav/servo,anthgur/servo,sadmansk/servo,CJ8664/servo,mattnenterprise/servo,dati91/servo,peterjoel/servo,larsbergstrom/servo,dati91/servo,upsuper/servo,KiChjang/servo,anthgur/servo,emilio/servo,szeged/servo,rnestler/servo,avadacatavra/servo,notriddle/servo,dsandeephegde/servo,nrc/servo,SimonSapin/servo,anthgur/servo,paulrouget/servo,jimberlage/servo,nnethercote/servo,pyfisch/servo,avadacatavra/servo,emilio/servo,sadmansk/servo,notriddle/servo,DominoTree/servo,CJ8664/servo,dati91/servo,DominoTree/servo