* api/render: initial implementation of the package
* acme/api: refactored to support api/render
* authority/admin: refactored to support api/render
* ca: refactored to support api/render
* api: refactored to support api/render
* api/render: implemented Error
* api: refactored to support api/render.Error
* acme/api: refactored to support api/render.Error
* authority/admin: refactored to support api/render.Error
* ca: refactored to support api/render.Error
* ca: fixed broken tests
* api/render, api/log: moved error logging to this package
* acme: refactored Error so that it implements render.RenderableError
* authority/admin: refactored Error so that it implements render.RenderableError
* api/render: implemented RenderableError
* api/render: added test coverage for Error
* api/render: implemented statusCodeFromError
* api: refactored RootsPEM to work with render.Error
* acme, authority/admin: fixed pointer receiver name for consistency
* api/render, errs: moved StatusCoder & StackTracer to the render package
This change attempts to fix the test TestBootstrapClientServerRotation.
Due to the backdate, the renew options get too large, causing
continuous renewals, and random errors. After experimenting with
different options, truncating durations to seconds have shown better
results than rounding or just use the plain time.
When step-ca runs with mTLS required on some endpoints, the SDK
used in autocert will fail to start because the identity certificate
is missing. This certificate is only required to retrieve all roots,
in most cases there's only one, and the SDK has access to it.
