`from lemur import metrics` is incorrect for notifications/messaging.py
because that is importing the `metrics` module rather than the
instanciated `lemur.extensions.metrics` object. This will cause errors
if you import notifications/messaging.py elsewhere, since it can cause
circular dependencies.
Change-Id: Ice28c480373601420fc83bae2d27bb6467cdb752
* Documentation fixes
* Various docstring and help string fixes
* Minor code cleanups
* Removed redundant .gitignore entry, ignored package-lock.json.
* 'return' statement in certificates.service.render was redundant
* Split up too long line
* Non-matching tags in templates
* Adds additional constraints to the max notification time. With an increasing number of certificates we need to limit the max notification time to reduce the number of certificates that need to be analyzed for notification eligibility.
