added new child class for BING
added new child class for BING

hslatman/SEOstats,WebsterFolksLabs/SEOstats,MurgaNikolay/SEOstats,MurgaNikolay/SEOstats,jslyonnais/SEOstats,jslyonnais/SEOstats,eyecatchup/SEOstats,maxyc/SEOstats,WebsterFolksLabs/SEOstats,harikt/SEOstats,hslatman/SEOstats