Add AllowClear Button (type search) and allow empty value (#126)

* downgrade docs to vue 2

* docs load local dist

* add allowClear and update docs

* allow empty string status

Author: JonathanSchndr

dist/vue-numeric.min.js

@@ -34,6 +34,8 @@ <h2 class="subtitle">
               <vue-numeric
                 class="input is-large"
                 v-model="money"
+                :allow-clear="allowClear"
+                :empty-value="emptyValue"
                 :min="minValue"
                 :max="maxValue"
                 :currency="currency"
@@ -77,6 +79,12 @@ <h1 class="title is-4">
               <input class="input" type="number" v-model.number="decimals">
             </p>
           </div>
+          <div class="column is-12">
+            <p class="control">
+              <label class="label"> Empty Value </label>
+              <input class="input" type="text" v-model="emptyValue">
+            </p>
+          </div>
           <div class="column is-12">
             <label class="label"> Separator </label>
             <p class="control">
@@ -100,6 +108,12 @@ <h1 class="title is-4">
               Read Only
             </p>
           </div>
+          <div class="column is-12">
+            <p class="control">
+              <input type="checkbox" v-model="allowClear">
+              Allow clear
+            </p>
+          </div>
         </div>
       </div>
 
@@ -132,8 +146,8 @@ <h1 class="title is-4">
     </div>
 
     <script src="https://unpkg.com/accounting-js"></script>
-    <script src="https://unpkg.com/vue"></script>
-    <script src="https://unpkg.com/vue-numeric"></script>
+    <script src="https://unpkg.com/vue@2.6.14"></script>
+    <script src="../dist/vue-numeric.min.js"></script>
 
     <script>
       Vue.use(VueNumeric.default)
@@ -143,6 +157,8 @@ <h1 class="title is-4">
 
         data:  {
           money: 1000,
+          allowClear: true,
+          emptyValue: '',
           minValue: 0,
           maxValue: 999999,
           currency: '$',