adding postcode support for usa

sanitiser/_input.js

@@ -37,7 +37,26 @@ function sanitize( req ){
 
   // address parsing
   // var parsedAddress1 = parser1.parseAddress(params.input);
-  var parsedAddress2 = parser2(params.input);
+
+  // postcodes (should be its own file. Contribute back to addressIt)
+  // {
+  //   "US":/^\d{5}([\-]?\d{4})?$/,
+  //   "UK":/^(GIR|[A-Z]\d[A-Z\d]??|[A-Z]{2}\d[A-Z\d]??)[ ]??(\d[A-Z]{2})$/,
+  //   "DE":/\b((?:0[1-46-9]\d{3})|(?:[1-357-9]\d{4})|(?:[4][0-24-9]\d{3})|(?:[6][013-9]\d{3}))\b/,
+  //   "CA":/^([ABCEGHJKLMNPRSTVXY]\d[ABCEGHJKLMNPRSTVWXYZ])\ {0,1}(\d[ABCEGHJKLMNPRSTVWXYZ]\d)$/,
+  //   "FR":/^(F-)?((2[A|B])|[0-9]{2})[0-9]{3}$/,
+  //   "IT":/^(V-|I-)?[0-9]{5}$/,
+  //   "AU":/^(0[289][0-9]{2})|([1345689][0-9]{3})|(2[0-8][0-9]{2})|(290[0-9])|(291[0-4])|(7[0-4][0-9]{2})|(7[8-9][0-9]{2})$/,
+  //   "NL":/^[1-9][0-9]{3}\s?([a-zA-Z]{2})?$/,
+  //   "ES":/^([1-9]{2}|[0-9][1-9]|[1-9][0-9])[0-9]{3}$/,
+  //   "DK":/^([D-d][K-k])?( |-)?[1-9]{1}[0-9]{3}$/,
+  //   "SE":/^(s-|S-){0,1}[0-9]{3}\s?[0-9]{2}$/,
+  //   "BE":/^[1-9]{1}[0-9]{3}$/,
+  //   "IN":/^\d{6}$/
+  // }
+
+  // using US PostCode for now 
+  var parsedAddress2 = parser2(params.input, { rePostalCode: /^\d{5}([\-]?\d{4})?$/ });
 
   // var parsedAddress  = extend(parsedAddress0, parsedAddress1, parsedAddress2);
   var parsedAddress  = extend(parsedAddress0, parsedAddress2);
@@ -48,7 +67,7 @@ function sanitize( req ){
                           'city',
                           'state',
                           'country',
-                          'zip',
+                          'postalcode',
                           'regions',
                           'admin_parts'
                         ];