Update testem and browserify
Update testem and browserify

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