Nantong, ChinaViewStock/Getty ImagesOn Thursday, China unveiled new measures to prop up its struggling property market.The measures include quicker credit for developers and support for renovations in urban shantytowns.But analysts say the new measures aren't enough to solve the market's structural challenges.China officials have directed a wave of stimulus measures at the country's beleaguered property market, but the effort hasn't done much to impress Wall Street experts.