Add a switch to show dates associated with trademarks.

Change-Id: Iada4aa860390492827ff33821e6d99403860d2d1
diff --git a/tools/trademarks.php b/tools/trademarks.php
index 70d1683..b0844f3 100644
--- a/tools/trademarks.php
+++ b/tools/trademarks.php
@@ -117,6 +117,7 @@
 	if ($trademarks) {
 		echo "<li>";
 		echo implode(", ", $trademarks);
+		if (@_GET['showdates']) echo " (" . date('Y-m-d', $project->getProvisionedDate()), ")";
 		echo "</li>";
 	}
 };