chore(META): release rxjs-run 4.0.0-rc.4
chore(META): release rxjs-run 4.0.0-rc.4

cyclejs/cyclejs,usm4n/cyclejs,cyclejs/cycle-core,usm4n/cyclejs,feliciousx-open-source/cyclejs,usm4n/cyclejs,staltz/cycle,feliciousx-open-source/cyclejs,ntilwalli/cyclejs,ntilwalli/cyclejs,feliciousx-open-source/cyclejs,ntilwalli/cyclejs,maskinoshita/cyclejs,ntilwalli/cyclejs,usm4n/cyclejs,staltz/cycle,cyclejs/cyclejs,maskinoshita/cyclejs,maskinoshita/cyclejs,cyclejs/cyclejs,maskinoshita/cyclejs,feliciousx-open-source/cyclejs,cyclejs/cycle-core,cyclejs/cyclejs