bump ver, update doc

Author: bradmartin

README.md

@@ -20,24 +20,37 @@ From your command prompt/termial go to your app's root folder and execute:
 <Page xmlns="http://schemas.nativescript.org/tns.xsd"
       xmlns:SignaturePad="nativescript-signaturepad">
      <StackLayout>
-         <SignaturePad:SignaturePad id="drawingPad" penColor="#3489db" penWidth="5" />        
+            <SignaturePad:SignaturePad
+                height="200"
+                id="drawingPad"     
+                penColor="#ff4081" 
+                penWidth="3" />   
+            
+            <button text="Get Drawing" tap="getDrawing" />
+            <button text="Clear Drawing" tap="clearDrawing" />
      </StackLayout>
 </Page>
 ```
 
 #### JS:
 ```JS
 var frame = require("ui/frame");
+
+// To get the drawing...
 function getDrawing(args) {
     // get reference to the drawing pad
     var pad = frame.topmost().currentPage.getViewById("drawingPad");
     // then access the 'drawing' property (Bitmap on Android) of the signaturepad
     var drawingImage = pad.drawing;
+}
+exports.getDrawing = getDrawing;
 
-    // If you want to clear the signature/drawing...
+// If you want to clear the signature/drawing...
+function clearDrawing(args) {
+    var pad = frame.topmost().currentPage.getViewById("drawingPad");
     pad.clearDrawing();
 }
-exports.getDrawing = getDrawing;
+exports.clearDrawing = clearDrawing;
 ```
 
 ## Attributes

demo/app/main-page.xml

@@ -12,13 +12,14 @@
                    class="message" textWrap="true" />
 
             <SignaturePad:SignaturePad
-                height="270"
+                height="200"
                 id="drawingPad"     
                 penColor="#ff4081" 
                 penWidth="3" />   
 
             <Button text="Get Drawing" tap="getDrawing" />
             <button text="Clear Drawing" tap="clearDrawing" />
+            
         </StackLayout>
     </ScrollView>
 </Page>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nativescript-signaturepad",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "main": "signaturepad.js",
   "description": "A NativeScript plugin to provide a way to capture signatures (and any other drawing) from the device screen.",
   "nativescript": {