fixes #4122 and new charts design
fixes #5105 - remove Setting['remove_classes_not_in_environment']
fixes #5083 - refactor host_edit.js - remove puppetclass specific functions to class_edit.js
fixes #5137 - audited :associated_with labels are 'N/A' for models that have a hyphen
fixes #4204 - add config groups feature - assign multiple config groups to a host or hostgroup
fixes #5173 - sortable counters on list of config_groups for number of hosts, hostgroups and puppetclasses
fixes #5141 - User unable to access children taxonomies on switcher