Releaser bugfix (#59)

* add cache on available payment methods if request fails

* prevent error logging if response status code starts with 1 + prevent php from sending Expect: 100-continue header

* version bump

* releaser bugfix

releaser.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 helpFunction() {
     echo ""