Move cacert.pem to top-level dir

[scribu]

Currently, it's in library/Requests/Transport/, which is a bit strange, since you only expect to find PHP files there.

Context: wp-cli/wp-cli@24e296d

[rmccue]

Agreed that it's strange, but only the library/ directory is guaranteed to be included (e.g. I believe the PEAR package strips non-library). Perhaps library/requests-cacert.pem is a better location.

[scribu]

I really don't see why you bother with PEAR, but yeah, library/ could also work.

[rmccue]

#210 allows moving this wherever you want instead, so going to close this as fixed.