New role permission for modifying existing users, but not create new ones

<p>Users may need to modify certain aspects of an existing user's record without being granted greater access to create new users in the system. A new role setting has been added to allow a user to modify existing users but not create new ones. To enable this role setting, user's with the appropriate role permissions navigate to Administration > Global Settings > Users > Roles. Select a role or create a new one. Select the option "View and modify existing users". Click Save.</p>