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The only difference between ordinary and extraordinary is just that little "extra".

speed up 47% by optimizing findNearestCity() to check for cityName in cities array before calculating gps distances (via @neosilky)

remove duplicate unserialize(cities) and put in config to save 23% load time (via @neosilky)

fix blog https://twitter.com/strocolate1/status/1006167392374919169