[Revert] Update woo.com domain, update feature-requests URL in yeoman generator

[puntope]

Changes proposed in this Pull Request:

Project: peeuvX-1zs-p2

This PR reverts part of the changes in #88
that replaced woocommerce.com references with woo.com references.

So this PR will put back woocommerce.com as the domain.

Detailed test instructions:

1. Confirm all changed URLs work.
2. Verify no woo.com references are left in the repo
3. Install the generator according to its readme
4. create a test directory
5. run yo grow there
6. Search for woocommerce.com. Check that feature requests link in .github/CONTRIBUTING.md works

Additional details:

Changelog entry

Tweak - Replace woo.com references with woocommerce.com.

[eason9487]

Thanks for the work! LGTM.

The PR title is a bit ambiguous at first glance due to the verb combination of revert and update, so maybe it could be tweaked.