CC-2596: upgrade doesn't reconize existing Airtime 1.7->1.9
CC-2596: upgrade doesn't reconize existing Airtime 1.7->1.9

- using "===" instead "==" to check if the value is 'false'

ReganDryke/airtime,Lapotor/libretime,comiconomenclaturist/libretime,ReganDryke/airtime,radiorabe/airtime,justvanbloom/airtime,LibreTime/libretime,sourcefabric/Airtime,thnkloud9/Airtime,justvanbloom/airtime,sourcefabric/Airtime,LibreTime/libretime,LibreTime/libretime,thnkloud9/Airtime,Ryex/airtime,sourcefabric/Airtime,LibreTime/libretime,sourcefabric/airtime,Ryex/airtime,thnkloud9/Airtime,comiconomenclaturist/libretime,ReganDryke/airtime,thnkloud9/Airtime,sourcefabric/airtime,Ryex/airtime,Lapotor/libretime,radiorabe/airtime,radiorabe/airtime,radiorabe/airtime,Lapotor/libretime,Ryex/airtime,comiconomenclaturist/libretime,Ryex/airtime,sourcefabric/Airtime,sourcefabric/airtime,ReganDryke/airtime,radiorabe/airtime,Ryex/airtime,comiconomenclaturist/libretime,thnkloud9/Airtime,justvanbloom/airtime,LibreTime/libretime,justvanbloom/airtime,radiorabe/airtime,comiconomenclaturist/libretime,Lapotor/libretime,radiorabe/airtime,Lapotor/libretime,Lapotor/libretime,justvanbloom/airtime,justvanbloom/airtime,sourcefabric/airtime,ReganDryke/airtime,sourcefabric/airtime,thnkloud9/Airtime,sourcefabric/Airtime,sourcefabric/Airtime,LibreTime/libretime,ReganDryke/airtime,Ryex/airtime,ReganDryke/airtime,sourcefabric/airtime,comiconomenclaturist/libretime,sourcefabric/Airtime,thnkloud9/Airtime,justvanbloom/airtime,comiconomenclaturist/libretime,sourcefabric/airtime