Over 50 families in Orange Farm south of Johannesburg are still waiting to move into their new RDP houses, five years after construction began. Last year all 53 were demolished due to poor workmanship. A new contractor was appointed but has only erected 20 structures with no roofs, doors or windows.  Gauteng's Human Settlements Department has more than 1300 houses across the province that are incomplete, some were abandoned due to shoddy workmanship. Tshepo Phagane has more…