updated Downloader with ifUpdateAvailable#328

Merged

plata merged 2 commits intoPhoenicisOrg:masterfrom

plata:update-available

Aug 19, 2017

Commits on Aug 16, 2017

updated Downloader with ifUpdateAvailable
plata
committed

Commits on Aug 19, 2017

renamed to onlyIfUpdateAvailable
plata
committed