* Warn on upper case in policy name
* Rename name variable to be less confusing
* Use more general solution for other string issues
* Clarify changelog
* Remove unnecessary check
* Don't throw CLI warning until after past errors
* Add before and after names with quotes to show spacing changes
Previously we lowercased names on ingress but not on lookup or delete
which could cause unexpected results. Now, just unilaterally lowercase
policy names on write and delete. On get, to avoid the performance hit
of always lowercasing when not necessary since it's in the critical
path, we have a minor optimization -- we check the LRU first before
normalizing. For tokens, because they're already normalized when adding
policies during creation, this should always work; it might just be
slower for API calls.
Fixes#3187
