fixed short invoice calculator (#114)

* fixed money display and address field for InvoiceTemplate entity
* added quick start button for users without active records
* rearranged columns on project and customer admin page
* improved extensions docu

src/Entity/InvoiceTemplate.php

@@ -175,7 +175,7 @@ class InvoiceTemplate
      * @param string $address
      * @return InvoiceTemplate
      */
-    public function setAddress(string $address)
+    public function setAddress($address)
     {
         $this->address = $address;
         return $this;

src/Invoice/ShortInvoiceCalculator.php

@@ -30,6 +30,7 @@ class ShortInvoiceCalculator extends DefaultCalculator
         $timesheet = new Timesheet();
 
         foreach ($this->model->getEntries() as $entry) {
+            $timesheet->setRate($timesheet->getRate() + $entry->getRate());
             $timesheet->setDuration($timesheet->getDuration() + $entry->getDuration());
             if ($timesheet->getActivity() === null) {
                 $timesheet->setActivity($entry->getActivity());

src/Twig/Extensions.php

@@ -121,7 +121,7 @@ class Extensions extends \Twig_Extension
      */
     public function money($amount, $currency = null)
     {
-        $result = round($amount, 2);
+        $result = number_format(round($amount, 2), 2);
         if ($currency !== null) {
             $result .= ' ' . Intl::getCurrencyBundle()->getCurrencySymbol($currency);
         }