Add luci-go tool to be fetched via CIPD

Do not remove the adhoc mechanism on GCS that predates CIPD yet, as the recipes
need to be updated.

Change analyze to not ignore changes to isolate.

R=tandrii@chromium.org

Bug: 851596
Change-Id: Ic068db83dea4c3a0f17b55181de523b16c9838a5
Reviewed-on: https://chromium-review.googlesource.com/1097623
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#569688}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 3bcc71d83f6d9af93a7408fbea34f6d5f0185c03
diff --git a/.gitignore b/.gitignore
index 06e9510..99085c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+/isolate
+/isolate.exe
 /linux64/isolate
 /mac64/isolate
 /win64/isolate.exe
diff --git a/OWNERS b/OWNERS
index 3bcc77d..8b03e48 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,5 +1,3 @@
-djd@chromium.org
 maruel@chromium.org
 tandrii@chromium.org
-tansell@chromium.org
 vadimsh@chromium.org
diff --git a/README.md b/README.md
index f53bec1..5cb0ddf 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,4 @@
 
 Contains executable built out of
 https://chromium.googlesource.com/infra/luci/luci-go/+/master/client/cmd
-
-The binaries are retrieved from the following builders:
-
-- mac64: http://build.chromium.org/p/chromium.infra/builders/infra-continuous-mac-10.10-64/
-- linux64: http://build.chromium.org/p/chromium.infra/builders/infra-continuous-precise-64/
-- win64: http://build.chromium.org/p/chromium.infra/builders/infra-continuous-win-64/
+Mapped through CIPD.