added comments and fixed jslint errors in RequestHandler
added comments and fixed jslint errors in RequestHandler

georgecrawford/webdriverio,noodle-learns-programming/webdriverio,adjohnson916/webdriverio,amitaibu/webdriverio,compulim/webdriverio,stoeffel/webdriverio,austek-mdsol/webdriverio,Mimiscita/webdriverio,Pitzcarraldo/webdriverio,sebastiendavid/webdriverio,rossPatton/webdriverio,pazone/webdriverio,adjohnson916/webdriverio,stoeffel/webdriverio,vslinko-forks/webdriverio,cto/webdriverio,testingbot/webdriverjs,eyalzek/webdriverio,vslinko-forks/webdriverio,mike-suggitt/webdriverio,georgecrawford/webdriverio,eyalzek/webdriverio,austek-mdsol/webdriverio,compulim/webdriverio,drptbl/webdriverio,pazone/webdriverio,Mimiscita/webdriverio,gabrielpeery/webdriverio,lseongjoo/webdriverjs,monolithed/webdriverio,amitaibu/webdriverio,danielgil/webdriverio,Pitzcarraldo/webdriverio,matteonovelli/webdriverio,lseongjoo/webdriverjs,milafrerichs/webdriverio,leahciMic/webdriverio,jhoguet/webdriverio,udnisap/webdriverio,Risto-Stevcev/webdriverio,udnisap/webdriverio,richardmcsong/webdriverio,saulshanabrook/webdriverio,angelsanz/webdriverio,leahciMic/webdriverio,silvenon/webdriverio,dandv/webdriverio,silvenon/webdriverio,drptbl/webdriverio,saulshanabrook/webdriverio,monolithed/webdriverio,wcainboundary/webdriverio,testingbot/webdriverjs,noodle-learns-programming/webdriverio,danielgil/webdriverio,Risto-Stevcev/webdriverio,richardmcsong/webdriverio,mike-suggitt/webdriverio,gabrielpeery/webdriverio,milafrerichs/webdriverio,matteonovelli/webdriverio,dandv/webdriverio,jhoguet/webdriverio,sebastiendavid/webdriverio,christian-bromann/webdriverjs,rossPatton/webdriverio,wcainboundary/webdriverio,cto/webdriverio,angelsanz/webdriverio