Rough start to merging leap_ca into webapp.
Merge branch 'master' into merge_leap_ca
removing the leap_ca namespacing from certs
adding certificate authority dependency
moving leap_ca configs into defaults.yml
we're not using a cert pool anymore - remove anything related
adopting tests to the way certs work now. should pass.

* We now generate cert and key on validate.
* we don't expect the controller to pick from the pool anymore - just create instead
no need to store the cert anymore - just new initialize and send it
Merge pull request #22 from leapcode/feature/merge_leap_ca

merge leap ca