[bug 1098486] Remove under construction page

We never used this, so it's dead code.
Remove more gettext calls

These gettext calls were in the analyzer section (which is not
localized), the services monitor page (which is admin-only) and
the product dashboards which should probaly get nixed soon.
Merge pull request #381 from willkg/1098486-remove-underc

1098486 remove underc