Initial PR for revamping the users management page to better handle thousands of users & sites.
ignoreExistingparam to UsersManager. setUserAccess which will add access for a site, but ignore it if it's already been added (for adding site access in user permission edit).
<select>form fields to have placeholders & disabled options (disabled option has
@diosmosis Nicely executed! looking forward to hearing people's feedback. so many improvements packed in this PR :rocket: :rocket:
fyi: noticed some "fake" test failures in https://travis-ci.org/matomo-org/matomo/jobs/408768773 maybe you want to fix the build but I'll likely merge it for inclusion in the next beta 2 today