Merge pull request #47 from InteroTechnologies/8.0

FIX: print with copies and installed printer_tray module

printer_tray/printer.py

@@ -74,7 +74,7 @@ class Printer(models.Model):
         return vals
 
     @api.multi
-    def print_options(self, report, format):
+    def print_options(self, report, format, copies=1):
         """ Hook to define Tray """
         printing_act_obj = self.env['printing.report.xml.action']
         options = super(Printer, self).print_options(report, format)