anaconda crash reporting: update needles, click Report again
    
    Summary:
    First off, this revises the anaconda crash handling needles a
    bit. We ditch gtk3195 and update anaconda_error to reflect
    current F24/Rawhide. We keep the old anaconda_error around for
    now as anaconda_error-23, to handle crashes in the F23 two-week
    Atomic nightlies. We also add an 'early' variant, which is for
    when (I think) the installer crashes very early, before it's
    loaded in GTK+ settings; when that happens, the dialog uses a
    different font. The screenshot comes from a recent Rawhide test
    that crashed.
    
    We also restore the anaconda `post_fail_hook` code to click
    the Report button when a crash happens. This was erroneously
    removed in D637. Before the Report button is clicked, the
    `anaconda-tb` file exists but the libreport stuff in `/var/tmp`
    does not. By removing this, we lost the libreport bits from
    the uploaded files, which makes it harder to report crashes. So
    let's add it back.
    
    Finally we fix the actual tarring and uploading of `/var/tmp`;
    also in D637 this got broken because it was being tarred up in
    whatever directory the commands happened to be running in, but
    we were still trying to upload it from `/var/tmp`.
    
    https://openqa.stg.fedoraproject.org/tests/8444 was run with
    these changes, and has `/var/tmp` correctly uploaded.
    
    Test Plan:
    Run some test that crashes, make sure the crash
    handling all works correctly.
    
    Reviewers: jskladan, garretraziel
    
    Reviewed By: garretraziel
    
    Subscribers: tflink
    
    Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D768