WIP: Split OpenSSL binding from the backend interface

[public]

No description provided.

[coveralls]

Coverage remained the same when pulling 10e6efd on public:split-binding into fbd7ffc on pyca:master.

[jenkins-cryptography]

Test FAILed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/127/

[coveralls]

Coverage remained the same when pulling 1d56c5e on public:split-binding into fbd7ffc on pyca:master.

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/128/

[alex]

Two notes:

1. I don't think subclassing is the right approach here.
2. bindings can't live in the backends/openssl/ dir, this is because openssl/init imoprts openssl/backend which instantiates a backend and does all the initialization logic.

[public]

Bah missed that module scope Backend() call. Why not subclassing? You'd rather the backend just pulled the lib and ffi off of another object?

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/133/

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/134/

[dreid]

This should probably assert that both lib and ffi exist and are not None.

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/140/

[alex]

This looks good, except there's a merge conflict, can you merge/rebase master in?

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/147/

[coveralls]

Coverage remained the same when pulling 82c8cc1 on public:split-binding into c9add40 on pyca:master.

[alex]

It looks like this file wasn't added to the index.

[alex]

And it looks like there's somehow still a merge conflict issue?

[coveralls]

Coverage remained the same when pulling c368ac2 on public:split-binding into 5f4c492 on pyca:master.

[jenkins-cryptography]

Test PASSed.
Refer to this link for build results: http://jenkins.cryptography.io/job/cryptography-pr-experimental/154/