News At Seven-Thirty highlights:HKMA unveils new mortgage curbs to stabilise banking system;Government to sell eight plots to try and cool housing market;Standby signal no. 1 in effect;GlaxoSmithKline recalls plasticiser tainted Augmentin;Germany probes caterer as possible source to E.coli outbreak;Syrian refugees flee into Turkey ahead of military crackdown;Libyan rebels get aid but not enough;Man in critical condition after being crushed by collapsed canopy in Tuen Mun;Separate road accidents in Kowloon kills elderly woman and domestic helper;UK cat survives being shot in the head with a 12 inch crossbow arrow.