Started adding server-side support for creating a user.
Removed action buttons from each user tile. Added action icons next to the name of the user.
More back end create user work.
Merge branch 'master' into create-user
User is able to add another user, but UI doesn't update yet.
Fixed a bug in which the developer issue count wouldn't be set for users with no assigned issues.
Fixed tests pertaining to the change to returning stack traces.