Change defaults to max and min safe integers

Author: Cody Moorhouse

README.md

@@ -51,8 +51,8 @@ Vue.use(money, {precision: 4})
           suffix: ' #',
           precision: 2,
           masked: false,
-          min: -1000000000,
-          max: 1000000000,
+          min: Number.MIN_SAFE_INTEGER,
+          max: Number.MAX_SAFE_INTEGER
         }
       }
     }

src/options.js

@@ -4,6 +4,6 @@ export default {
   thousands: ',',
   decimal: '.',
   precision: 2,
-  min: -1000000000,
-  max: 1000000000
+  min: Number.MIN_SAFE_INTEGER,
+  max: Number.MAX_SAFE_INTEGER
 }