Auto merge of #9643 - paulrouget:resolveSymlink, r=larsbergstrom
Auto merge of #9643 - paulrouget:resolveSymlink, r=larsbergstrom

Follow executable symlink to resolve resources directory

We need this if we ever want to be able to install Servo, for example: https://github.com/paulrouget/homebrew-servo

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