Bug 895507
Documentation
Merge pull request #1454 from bdecoste/master

Merged by openshift-bot
WIP Cartridge Refactor - Update cartridge author's guide

* latest updates/improvements
Merge pull request #1445 from kraman/gen_docs

Merged by openshift-bot
Merge pull request #1460 from jwhonce/wip/master

WIP Cartridge Refactor - Update cartridge author's guide
US2448
Added unit tests for alias and domain
Added validation for SSL certificate and private key
Added certificate_added_at to alias