message: BS4 new styles have been fixed
diff: export var defaultBootstrapCss = {
  root: "",
  - header: "panel-heading card-heading",
  - body: "panel-body card-body",
  + header: "panel-heading card-header",
  + body: "panel-body card-block",
  footer: "panel-footer card-footer",
  navigationButton: "",
  navigation: { complete: "sv_complete_btn", prev: "sv_prev_btn", next: "sv_next_btn" },
  @@ -14,8 +14,8 @@ export var defaultBootstrapCss = {
  panel: {title: "", container: "sv_p_container"},
  error: { root: "alert alert-danger", icon: "glyphicon glyphicon-exclamation-sign", item: "" },
  - boolean: { root: "sv_qbln form-inline", item: "checkbox form-check"},
  - checkbox: { root: "sv_qcbx form-inline", item: "checkbox form-check", other: "sv_q_checkbox_other" },
  + boolean: { root: "sv_qbln form-inline", item: "checkbox"},
  + checkbox: { root: "sv_qcbx form-inline", item: "checkbox", other: "sv_q_checkbox_other" },
  comment: "form-control",
  dropdown: { root: "", control: "form-control", other: "" },
  matrix: { root: "table", label: "sv_q_m_label" },
  @@ -23,7 +23,7 @@ export var defaultBootstrapCss = {
  matrixdynamic: { root: "table", button: "button" },
  paneldynamic: { root: "", button: "button" },
  multipletext: { root: "table", itemTitle: "", itemValue: "sv_q_mt_item_value form-control" },
  - radiogroup: { root: "form-inline", item: "radio form-check", label: "", other: "sv_q_radiogroup_other" },
  + radiogroup: { root: "form-inline", item: "radio", label: "", other: "sv_q_radiogroup_other" },
  rating: { root: "btn-group", item: "btn btn-default", selected: "active" },
  text: "form-control",
  expression: "form-control",
  