diff --git a/go.sum b/go.sum
index e679efa..dd9739f 100644
--- a/go.sum
+++ b/go.sum
@@ -54,6 +54,7 @@
 github.com/aws/aws-sdk-go v1.20.7/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.20.8/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.20.10/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/aws/aws-sdk-go v1.20.11/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -112,6 +113,7 @@
 github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-openapi/jsonpointer v0.0.0-20160704185906-46af16f9f7b1/go.mod h1:+35s3my2LFTysnkMfxsJBAMHj/DoqoB9knIWoYG/Vk0=
@@ -409,6 +411,8 @@
 go.chromium.org/luci v0.0.0-20190625233447-d9189479527c/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.chromium.org/luci v0.0.0-20190626234502-04475b07da13 h1:EbetmLtIbkI8Gjccdnvb5jIprh8MmbifKb4dvRKretA=
 go.chromium.org/luci v0.0.0-20190626234502-04475b07da13/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
+go.chromium.org/luci v0.0.0-20190628025021-f2e1c935d448 h1:Aqntl6bV303OQDEeZIeMzfB8iejQ32N+z4Z9visrzSk=
+go.chromium.org/luci v0.0.0-20190628025021-f2e1c935d448/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
@@ -439,6 +443,8 @@
 go.skia.org/infra v0.0.0-20190626013509-3d73c3fa2f7b/go.mod h1:yQmfGAvkDM0SCSHRuWbe2AM/vPEPvOZLYwp756+t8sI=
 go.skia.org/infra v0.0.0-20190626231720-fc7b23117c2e h1:Pal2am5x/v+DQiskR/T9aw/Bxn7E5oXpL894WKAAllw=
 go.skia.org/infra v0.0.0-20190626231720-fc7b23117c2e/go.mod h1:VWkKJdXXRmRxCTXnlmLN+/kMNFVdW+MzHGifvaT0fFI=
+go.skia.org/infra v0.0.0-20190627185021-d6e7a20ade33 h1:YsJsQFqwebEfj9OYoz95GzTAWJxV4t71FqEs+sDzN10=
+go.skia.org/infra v0.0.0-20190627185021-d6e7a20ade33/go.mod h1:buFP6D7k9j+WTLkBg7W9ItLCvPKD4ZoEvvC8O5QgNys=
 go.skia.org/skia v0.0.0-20190503181046-70aab823547a h1:+9xKwnzXTkTu+2ZVhffRu0A60Jx/gOETiNlKkzqbnRY=
 go.skia.org/skia v0.0.0-20190503181046-70aab823547a/go.mod h1:oVrxmr1FXbVQ7PeGtZ28Kg5wPvB+bNsnw1n2j5rtfTY=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
@@ -461,6 +467,7 @@
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190429183610-475c5042d3f1/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
+golang.org/x/exp v0.0.0-20190627132806-fd42eb6b336f/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190501045829-6d32002ffd75/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
@@ -597,6 +604,8 @@
 golang.org/x/tools v0.0.0-20190625160430-252024b82959/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190627033414-4874f863e654 h1:a5iTclD5417yiTAwxzAQY6HG6HeJS4MqmPCoTlbd+0I=
 golang.org/x/tools v0.0.0-20190627033414-4874f863e654/go.mod h1:F+l5rz3/Uc0BJWNSxc0r6FcPZ3lxfduWytgpR5peIOQ=
+golang.org/x/tools v0.0.0-20190628034336-212fb13d595e h1:ZlQjfVdpDxeqxRfmO30CdqWWzTvgRCj0MxaUVfxEG1k=
+golang.org/x/tools v0.0.0-20190628034336-212fb13d595e/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools/gopls v0.1.0/go.mod h1:p8Q0IUu6EEeGxqmoN/g6Et3gReLCGA7PtNRdyOxcWJE=
 google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
 google.golang.org/api v0.3.2/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
@@ -630,6 +639,8 @@
 google.golang.org/genproto v0.0.0-20190620144150-6af8c5fc6601/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
 google.golang.org/genproto v0.0.0-20190626174449-989357319d63 h1:UsSJe9fhWNSz6emfIGPpH5DF23t7ALo2Pf3sC+/hsdg=
 google.golang.org/genproto v0.0.0-20190626174449-989357319d63/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
+google.golang.org/genproto v0.0.0-20190627203621-eb59cef1c072 h1:Ct/ZXYnRnqFsiN9c89ZgAXESkBg3eZFDW11KuF+Koz0=
+google.golang.org/genproto v0.0.0-20190627203621-eb59cef1c072/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.19.1/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -671,6 +682,7 @@
 k8s.io/api v0.0.0-20190620073856-dcce3486da33/go.mod h1:ldk709UQo/iedNLOW7J06V9QSSGY5heETKeWqnPoqF8=
 k8s.io/api v0.0.0-20190624085159-95846d7ef82a/go.mod h1:O6YAz5STgv7S1/c/XtBULGhSltH7yWEHpWvnA1mmFRg=
 k8s.io/api v0.0.0-20190626000116-b178a738ed00/go.mod h1:O6YAz5STgv7S1/c/XtBULGhSltH7yWEHpWvnA1mmFRg=
+k8s.io/api v0.0.0-20190627205229-acea843d18eb/go.mod h1:dNIey7Yoxc4u51YMhX4E5Cs6xiuGvXIGghzAZ9RzR88=
 k8s.io/apimachinery v0.0.0-20190424212440-527a9d33701e/go.mod h1:5CBnzrKYGHzv9ZsSKmQ8wHt4XI4/TUBPDwYM9FlZMyw=
 k8s.io/apimachinery v0.0.0-20190425132440-17f84483f500/go.mod h1:5CBnzrKYGHzv9ZsSKmQ8wHt4XI4/TUBPDwYM9FlZMyw=
 k8s.io/apimachinery v0.0.0-20190430211124-5bae42371a56/go.mod h1:5CBnzrKYGHzv9ZsSKmQ8wHt4XI4/TUBPDwYM9FlZMyw=
@@ -678,6 +690,7 @@
 k8s.io/apimachinery v0.0.0-20190612125636-6a5db36e93ad/go.mod h1:I4A+glKBHiTgiEjQiCCQfCAIcIMFGt291SmsvcrFzJA=
 k8s.io/apimachinery v0.0.0-20190620073744-d16981aedf33/go.mod h1:9q5NW/mMno/nwbRZd/Ks2TECgi2PTZ9cwarf4q+ze6Q=
 k8s.io/apimachinery v0.0.0-20190624085041-961b39a1baa0/go.mod h1:48PVecD7ubRgJmMRGIQfsqYu6OucVH5DzFNtACHZH8k=
+k8s.io/apimachinery v0.0.0-20190627205106-bc5732d141a8/go.mod h1:T1Vra67tZppnhHB3gqfn8/pmTb9EMVZXLvaevIRo6cU=
 k8s.io/client-go v0.0.0-20190425172711-65184652c889/go.mod h1:PeVFCnjeDy6EwLN+wdDIZd1DwDY6jnkpQt9psMo5YRU=
 k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
 k8s.io/gengo v0.0.0-20190327210449-e17681d19d3a/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
@@ -696,4 +709,5 @@
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190426204423-ea680f03cc65/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
+sigs.k8s.io/structured-merge-diff v0.0.0-20190627180121-0cb33202b0c3/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=