Added icons for status column.

The status formatter was modified to show enabled/disabled icon
before the status text.

The format classes were renamed to formatter to avoid confusion
with the format() method. A new parameter 'type' was added to the
formatter to determine the output type (e.g. text/html).

Ticket #1996

install/ui/user.js

@@ -44,7 +44,7 @@ IPA.user.entity = function(spec) {
                 {
                     name: 'nsaccountlock',
                     label: IPA.messages.status.label,
-                    format: IPA.boolean_status_format({
+                    formatter: IPA.boolean_status_formatter({
                         invert_value: true
                     })
                 },