release v.1.7.5

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-jetpack/trunk@1003527 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-jetpack/trunk@1003530 b8457f37-d9ea-0310-8a92-e5e31aec5664