Fixed "requires" and "tested" parts of readme.

git-svn-id: https://plugins.svn.wordpress.org/datafeedr-product-sets/trunk@879509 b8457f37-d9ea-0310-8a92-e5e31aec5664
Committing version 1.0.4.

git-svn-id: https://plugins.svn.wordpress.org/datafeedr-product-sets/trunk@879513 b8457f37-d9ea-0310-8a92-e5e31aec5664