A rendering of a proposed park in Aurora’s Windler development. (Facebook) The homebuilding giant D.R. Horton has again reneged on a deal to buy tens of millions of dollars worth of lots in a new Aurora subdivision, according to its developer. The 850-acre Windler Homestead in Aurora, a former family farm dating to 1881, is being turned into the Windler community of 5,800 residential units plus millions of square feet of retail and industrial sp…