[Milo] Redirect to search results from /buildbot/<master>.
[Milo] Redirect to search results from /buildbot/<master>.

R=ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org

Bug: 784874
Change-Id: Ibb51c43e62869d9f7e2d90575a4c36bb8ee8aed6
Reviewed-on: https://chromium-review.googlesource.com/775582
Reviewed-by: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>
Commit-Queue: Erik Staab <9e0728822fdb2ce07b011b42510312bb837e6a51@chromium.org>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go