* Fix race accessing b.crls within cert auth
- Discovered by CircleCI the pathLogin, pathLoginRenew paths access
and reloads the b.crls member variable without a lock.
- Also discovered that pathLoginResolveRole never populated an empty
b.crls before usage within b.verifyCredentials
* Add cl
* Misc cleanup
- Introduce a login path wrapper instead of repeating in all the
various login methods the crl reloading
- Cleanup updatedConfig, never returned an error and nothing looked at
the error returned
- Make the test within TestCRLFetch a little less timing sensitive as
I was able to trigger a failure due to my machine taking more than
150ms to load the new CRL
