diff --git a/go.sum b/go.sum
index 326ad2c..d1e81ab 100644
--- a/go.sum
+++ b/go.sum
@@ -112,6 +112,7 @@
 github.com/aws/aws-sdk-go v1.23.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.23.1/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.23.2/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/aws/aws-sdk-go v1.23.3/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=
@@ -296,6 +297,7 @@
 github.com/grpc-ecosystem/grpc-gateway v1.9.3/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.4/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
+github.com/grpc-ecosystem/grpc-gateway v1.9.6/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-multierror v1.0.0 h1:iVjPR7a6H0tWELX5NxNe7bYopibicUzc7uPribsnS6o=
@@ -581,6 +583,8 @@
 go.chromium.org/luci v0.0.0-20190815000333-f3d772c3b3fb/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.chromium.org/luci v0.0.0-20190815232225-01c7a47c499b h1:wIlYorSkVJ2K7UNbnG6BOZ2zy0s7PpiYWOjCJ0/1evw=
 go.chromium.org/luci v0.0.0-20190815232225-01c7a47c499b/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
+go.chromium.org/luci v0.0.0-20190816194131-4b600c9efb12 h1:mY6O4bEXDOKJNhqkv17p5Pxjk3hM9RoRPeMc2CJWM2A=
+go.chromium.org/luci v0.0.0-20190816194131-4b600c9efb12/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=
@@ -689,6 +693,8 @@
 go.skia.org/infra v0.0.0-20190814233112-aae8a72948a3/go.mod h1:HYeQq+HF60Xs1Fcj+rWT3lUqFMcq9NfoMUQ5PR6Vb24=
 go.skia.org/infra v0.0.0-20190816002209-2902a9e8bf11 h1:0fiwiGEAOhvAgySVVtNWSOXXejNGOvFd84P30jDqp3g=
 go.skia.org/infra v0.0.0-20190816002209-2902a9e8bf11/go.mod h1:HYeQq+HF60Xs1Fcj+rWT3lUqFMcq9NfoMUQ5PR6Vb24=
+go.skia.org/infra v0.0.0-20190816193747-38befdd44040 h1:71q2XwoeCeiXJOE0llGWJTSiEQEDU1j9rrmy1j7Rghk=
+go.skia.org/infra v0.0.0-20190816193747-38befdd44040/go.mod h1:HYeQq+HF60Xs1Fcj+rWT3lUqFMcq9NfoMUQ5PR6Vb24=
 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=
@@ -952,6 +958,8 @@
 golang.org/x/tools v0.0.0-20190814235402-ea4142463bf3/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190815235612-5b08f89bfc0c h1:7eYQMBMvMxbxtNK/jCq9umo/V/QiO5CLoIzIpSYM1i4=
 golang.org/x/tools v0.0.0-20190815235612-5b08f89bfc0c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20190816200558-6889da9d5479 h1:lfN2PY/jymfnxkNHlbBF5DwPsUvhqUnrdgfK01iH2s0=
+golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools/gopls v0.1.0/go.mod h1:p8Q0IUu6EEeGxqmoN/g6Et3gReLCGA7PtNRdyOxcWJE=
 golang.org/x/tools/gopls v0.1.1/go.mod h1:RYlHDmWjvTa1HuWNyEKa6/zzI2ums47cfsozmM0466w=
 golang.org/x/tools/gopls v0.1.3/go.mod h1:vrCQzOKxvuiZLjCKSmbbov04oeBQQOb4VQqwYK2PWIY=
@@ -1000,6 +1008,8 @@
 google.golang.org/genproto v0.0.0-20190716160619-c506a9f90610/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64 h1:iKtrH9Y8mcbADOP0YFaEMth7OfuHY9xHOwNj4znpM1A=
 google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
+google.golang.org/genproto v0.0.0-20190817000702-55e96fffbd48 h1:P/BlPoYr1gpKHOHL0/Opzbiu5X5yb55Ef4P/YGrRwno=
+google.golang.org/genproto v0.0.0-20190817000702-55e96fffbd48/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 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=
@@ -1111,6 +1121,7 @@
 k8s.io/kube-openapi v0.0.0-20190718094010-3cf2ea392886/go.mod h1:RZvgC8MSN6DjiMV6oIfEE9pDL9CYXokkfaCKZeHm3nc=
 k8s.io/kube-openapi v0.0.0-20190722073852-5e22f3d471e6/go.mod h1:RZvgC8MSN6DjiMV6oIfEE9pDL9CYXokkfaCKZeHm3nc=
 k8s.io/kube-openapi v0.0.0-20190815110238-8ff09bc626d6/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
+k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
 k8s.io/utils v0.0.0-20190221042446-c2654d5206da/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
 k8s.io/utils v0.0.0-20190308190857-21c4ce38f2a7/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
 k8s.io/utils v0.0.0-20190520173318-324c5df7d3f0/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
@@ -1126,4 +1137,5 @@
 sigs.k8s.io/structured-merge-diff v0.0.0-20190711200306-eaa53bff5a75/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190719182312-e94e05bfbbe3/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190724202554-0c1d754dd648/go.mod h1:IIgPezJWb76P0hotTxzDbWsMYB8APh18qZnxkomBpxA=
+sigs.k8s.io/structured-merge-diff v0.0.0-20190817042607-6149e4549fca/go.mod h1:IIgPezJWb76P0hotTxzDbWsMYB8APh18qZnxkomBpxA=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=