Minor fixes

README.md

@@ -69,6 +69,7 @@ Add public/ to your web server root
 
 ### Deleveloper Notes
 
+* The application requires PHP >= 5.4.0
 * If you make any changes to the JavaScript files you need to run grunt to create the built files. See Gruntfile.js for more details.
 * The lookup tables are cached in memory (ie, Currencies, Timezones, Languages, etc). If you add a record to the database you need to clear the cache by uncommenting Cache::flush() in app/routes.php.
 * If you run into any composer errors try running composer dump-autoload. 

app/lang/en/texts.php

@@ -457,6 +457,7 @@ return array(
   'more_designs_self_host_text' => '',
   'buy' => 'Buy',
   'bought_designs' => 'Successfully added additional invoice designs',
-  
+
+  'sent' => 'sent',
 
 );

app/views/dashboard.blade.php

@@ -37,7 +37,7 @@
           {{ $invoicesSent }}
         </div>
         <div class="in-thin">
-          {{ Utils::pluralize('invoice', $invoicesSent) }} sent          
+          {{ Utils::pluralize('invoice', $invoicesSent) }} {{ trans('texts.sent') }}
         </div>
       </div>
     </div>

app/views/reports/d3.blade.php

@@ -283,10 +283,14 @@
       if (!invoice || invoice.invoice_status_id == 5) {
         return -1;
       }
+      var jsDate = convertToJsDate(invoice.created_at) || new Date().getTime();
       return parseInt((new Date().getTime() - convertToJsDate(invoice.created_at)) / (1000*60*60*24));       
     }
 
     function convertToJsDate(isoDate) {
+      if (!isoDate) {
+        return false;
+      }
       var t = isoDate.split(/[- :]/);
       return new Date(t[0], t[1]-1, t[2], t[3], t[4], t[5]);
     }