VCL-1139 - increase max allowed reservation duration from 20 weeks to 30 weeks

utils.php: modified getReservationLengthCeiling: changed 201600 to 302400 in 2 places
diff --git a/web/.ht-inc/utils.php b/web/.ht-inc/utils.php
index 6e71c29..f9a36ac 100644
--- a/web/.ht-inc/utils.php
+++ b/web/.ht-inc/utils.php
@@ -11271,11 +11271,11 @@
 		if($length < $i)
 			return $i;
 	}
-	for($i = 70560; $i <= 201600; $i += 10080) {
+	for($i = 70560; $i <= 302400; $i += 10080) {
 		if($length < $i)
 			return $i;
 	}
-	return 201600;
+	return 302400;
 }
 
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