fixes for old php

git-svn-id: https://plugins.svn.wordpress.org/music-seller/trunk@1045679 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixes for old php and tested version

git-svn-id: https://plugins.svn.wordpress.org/music-seller/trunk@1045684 b8457f37-d9ea-0310-8a92-e5e31aec5664