style: Disallow new undocumented code by default for Servo.
style: Disallow new undocumented code by default for Servo.

Still a bunch of Gecko-only code to document.

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