HONG KONG, Aug 30 (Reuters) – Thousands of protesters marched through the streets of Hong Kong for the seventh straight weekend on Saturday, defying a police ban on the rally, as the pro-democracy movement continues to push for free elections in the Chinese-ruled city. The protest, which organisers said drew more than 100,000 people, was the latest in a series of demonstrations that have rocked the former British colony since June, and has plunged the global financial hub into its worst political crisis in decades. On Saturday, protesters marched from Victoria Park in the city’s Causeway Bay district to the Central business district, chanting slogans such as .