Add cacheing of postcode lookup; something Chris added to error.php too.
Add cacheing of postcode lookup; something Chris added to error.php too.

MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg