[epiphany] (2 commits) Non-fast-forward update to branch wip/exalm/timestamps

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/timestamps' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  5427a0c... download: Use monotonic start time instead of GTK event tim
  b482c80... window: Don't use a timestamp in present_on_idle_cb()

Commits added to the branch:

  4ddec3d... download: Stop tracking download start time
  28d4b8e... window: Don't use a timestamp in present_on_idle_cb()