Roll CIPD and vpython versions to git_revision:4d19637ec2c3d1efd8c6a1b05285118b786919e2

Bug: 803158
Change-Id: Ie42a726a85d86ff4d62d141a6413886787760835
R=martiniss@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/982599Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
Commit-Queue: Sergey Berezin <sergeyberezin@chromium.org>

cipd_client_version

-git_revision:ae28364c740acff97ae118adcb2808b6cb5129c5
+git_revision:4d19637ec2c3d1efd8c6a1b05285118b786919e2

cipd_manifest.txt

@@ -8,7 +8,7 @@ $VerifiedPlatform mac-amd64
 $VerifiedPlatform windows-386 windows-amd64
 
 # vpython.
-infra/tools/luci/vpython/${platform}  git_revision:e1abc57be62d198b5c2f487bfb2fa2d2eb0e867c
+infra/tools/luci/vpython/${platform}  git_revision:4d19637ec2c3d1efd8c6a1b05285118b786919e2
 
 # LUCI editor
 infra/tools/luci/led/${platform}  git_revision:7c35171f0bf2061e5c231e5f4df1982dfa8066a6