Added functionality to be able to use an array within a query string.

Because it add's possibilities for custom parameters.

Author: Miranda

src/js/components/vue-autocomplete.vue

@@ -334,7 +334,13 @@
         let params = `${this.param}=${encode(val)}`
         if(this.customParams) {
           Object.keys(this.customParams).forEach((key) => {
-            params += `&${key}=${encode(this.customParams[key])}`
+            if(Array.isArray(this.customParams[key])) {
+                this.customParams[key].forEach(function (value) {
+                    params += `&${key}[]=${encode(value)}`
+                });
+            } else {
+                params += `&${key}=${encode(this.customParams[key])}`
+            }
           })
         }
         return params