MOBILE-2611 utils: Function to check whether HTML content is blank
MOBILE-2611 utils: Function to check whether HTML content is blank

reskit/moodlemobile,reskit/moodlemobile,saman222/moodlemobile2,FMCorz/moodlemobile2,saman222/moodlemobile2,dpalou/moodlemobile2,moodlehq/moodlemobile2,saman222/moodlemobile2,moodlehq/moodlemobile2,moodlehq/moodlemobile2,dpalou/moodlemobile2,FMCorz/moodlemobile2,reskit/moodlemobile,dpalou/moodlemobile2,saman222/moodlemobile2,reskit/moodlemobile,reskit/moodlemobile,moodlehq/moodlemobile2,saman222/moodlemobile2,moodlehq/moodlemobile2,reskit/moodlemobile,moodlehq/moodlemobile2