Update godeps

vendor/google.golang.org/grpc/.travis.yml

@@ -1,17 +1,21 @@
 language: go
 
 go:
-  - 1.5.3
-  - 1.6
+  - 1.5.4
+  - 1.6.3
+
+go_import_path: google.golang.org/grpc
 
 before_install:
+  - go get golang.org/x/tools/cmd/goimports
+  - go get github.com/golang/lint/golint
   - go get github.com/axw/gocov/gocov
   - go get github.com/mattn/goveralls
   - go get golang.org/x/tools/cmd/cover
 
-install:
-  - mkdir -p "$GOPATH/src/google.golang.org"
-  - mv "$TRAVIS_BUILD_DIR" "$GOPATH/src/google.golang.org/grpc"
-
 script:
+  - '! gofmt -s -d -l . 2>&1 | read'
+  - '! goimports -l . | read'
+  - '! golint ./... | grep -vE "(_string|\.pb)\.go:"'
+  - '! go tool vet -all . 2>&1 | grep -vE "constant [0-9]+ not a string in call to Errorf"'
   - make test testrace