taking in consideration hour12 default value from each cldr data format pattern

Author: caridy

dist/Intl.complete.js

@@ -1,6 +1,6 @@
 {
   "name": "intl",
-  "version": "1.0.0-rc-1",
+  "version": "1.0.0-rc-2",
   "description": "Polyfill the ECMA-402 Intl API (except collation)",
   "main": "index.js",
   "jsnext:main": "src/main.js",

dist/Intl.js

@@ -109,6 +109,7 @@ export function createDateTimeFormat(format) {
     });
 
     if (formatObj.pattern.indexOf('{ampm}') > -1) {
+        formatObj.hour12 = true;
         formatObj.pattern12 = formatObj.pattern;
         formatObj.pattern = formatObj.pattern.replace('{ampm}', '').trim();
     }