change problem reporting link on error page to mimic link in footer

    This is to show users what the button looks like, but the copy of the
    button is made to work so that users are not confused by trying to click
    an inert button.
Remove inline style from error page report problem link.
Merge pull request #106 from zanata/change-error-problem-link

change problem reporting link on error page to mimic link in footer