Heartier approach to getting the SKU for WC products.
Harden further for Woo SKU
Add test framework.
Resolve merge conflict with woocommerce.php
Update version constants to 1.0.4.  Ensure an empty commenter array doesn't trigger an identify() call.  Fixes #42.
Re-add readme.md.  Odd that it was removed.
Remove unused variables.
Update code so it is more testable.
Merge pull request #43 from JustinSainton/general-wp

General wp