curl: upgraded package to upstream

Diff from original change:
  - Dropped the curl-7.59.0-libressl-compatibility.patch as it's not
  used in the 7.60 ebuild
  - Dropped the change of md5-cache. It should be taken care of by the
  commit bot I think?

Upgraded net-misc/curl to version 7.60.0 on amd64

Changed back to EAPI 5 (including eapply->epatch), to avoid problems
bootstrapping our (old) early stage SDK tarballs.

BUG=chromium:859032
TEST=chromiumos-sdk trybot; preCQ; a few manual tests

Change-Id: Iabb6aefadfb9399ea23ed2bf925bd8ae2d2a92cb
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1132327
Trybot-Ready: Daniel Wang <wonderfly@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Daniel Wang <wonderfly@google.com>
Commit-Queue: Daniel Wang <wonderfly@google.com>
2 files changed