Update OpenSSL backend docs.
Merge pull request #1584 from Ayrx/fix-openssl-backend-docs

Update OpenSSL backend docs.
Revert "Fixed #1494 -- switch which define we look for for SSLv3 disabled. We're now using the same one as CPython."

This reverts commit facea9a7861ac1ecc7948474766cae0f842b3469.
Merge pull request #1585 from reaperhulk/revert-1512

Revert "Fixed #1494 -- switch which define we look for for SSLv3 disable...
update supported platforms
add 0.7.1 changelog to master
Merge pull request #1586 from reaperhulk/more-supported-platforms

update supported platforms
Merge pull request #1589 from reaperhulk/port-0.7.1-changelog

add 0.7.1 changelog to master
Move cryptography package one level down.
Update tasks.py to account for new structure.