Samples for All Invoice Operations including QR Code

- Invoice search method is static now
- Shipping Info has proper Phone Params
- Small Changes to Image Class
- Updated Sample Docs

sample/doc/invoice/SendInvoice.html

@@ -5,12 +5,7 @@ a legitimate invoice to the payer</p></div></div><div class="code"><div class="w
 
 <span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Invoice</span>;
 
-<span class="hljs-keyword">try</span> {</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="retrieve-invoice">Retrieve Invoice</h3>
-<p>Retrieve the invoice object by calling the
-static <code>get</code> method
-on the Invoice class by passing a valid
-Invoice ID
-(See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper">    <span class="hljs-variable">$invoice</span> = Invoice::get(<span class="hljs-variable">$invoice</span>-&gt;getId(), <span class="hljs-variable">$apiContext</span>);</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="send-invoice">Send Invoice</h3>
+<span class="hljs-keyword">try</span> {</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="send-invoice">Send Invoice</h3>
 <p>Send a legitimate invoice to the payer
 with a valid ApiContext (See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper">    <span class="hljs-variable">$sendStatus</span> = <span class="hljs-variable">$invoice</span>-&gt;send(<span class="hljs-variable">$apiContext</span>);
 } <span class="hljs-keyword">catch</span> (<span class="hljs-keyword">Exception</span> <span class="hljs-variable">$ex</span>) {