vendor: run dep ensure && dep prune on a clean client with latest dep

Move blacklisted directories from .gitignore to Gopkg.toml

This change also omits vendor/github.com/gopherjs/gopherjs/tests
now that dep wants to keep them.  It also omits the jws_test.go
file that was manually removed from the vendor tree.

Change-Id: If1eac02ba8807e861b68f2fbdd225206e2f29e78

.gitignore

@@ -41,61 +41,23 @@ misc/docker/camlistored/djpeg
 # vendored data we don't want to retain
 /vendor/**/.travis.yml
 /vendor/**/.gitignore
-/vendor/cloud.google.com/go/datastore/testdata
-/vendor/github.com/cznic/kv/_testdata
-/vendor/github.com/cznic/lldb/testdata
-/vendor/github.com/cznic/zappy/testdata/zappy_error_src_dump_purego.bin
-/vendor/github.com/garyburd/go-oauth/examples
-/vendor/github.com/golang/protobuf/proto/testdata
-/vendor/github.com/gopherjs/gopherjs/tests/testdata
-/vendor/github.com/gorilla/websocket/examples
 # contains a private key
 /vendor/github.com/miekg/dns/server_test.go
 /vendor/github.com/mattn/go-sqlite3/sqlite3_windows.c
-/vendor/github.com/rwcarlsen/goexif/exif/corrupt
 /vendor/github.com/rwcarlsen/goexif/exif/example_test.go
 /vendor/github.com/rwcarlsen/goexif/exif/exif_test.go
-/vendor/github.com/rwcarlsen/goexif/exif/samples
 /vendor/github.com/rwcarlsen/goexif/exif/sample1.jpg
 /vendor/github.com/rwcarlsen/goexif/tiff/sample1.tif
 /vendor/github.com/rwcarlsen/goexif/exif/regen_regress.go
 /vendor/github.com/rwcarlsen/goexif/exif/regress_expected_test.go
 /vendor/github.com/rwcarlsen/goexif/tiff/tiff_test.go
-/vendor/github.com/russross/blackfriday/testdata
-/vendor/github.com/syndtr/goleveldb/leveldb/testutil
-/vendor/github.com/syndtr/goleveldb/manualtest
-/vendor/github.com/tgulacsi/picago/testdata
-/vendor/github.com/tgulacsi/picago/testdata
-/vendor/go4.org/jsonconfig/testdata
-/vendor/golang.org/x/image/testdata
-/vendor/golang.org/x/image/font/testdata
-/vendor/golang.org/x/net/html/charset/testdata
-/vendor/golang.org/x/net/html/testdata
-/vendor/golang.org/x/net/http2/testdata
+# contains a private key
+/vendor/golang.org/x/crypto/acme/jws_test.go
 # oauth2 tests have private keys which cause trouble for devcam review
 /vendor/golang.org/x/oauth2/google/example_test.go
 /vendor/golang.org/x/oauth2/google/google_test.go
-/vendor/golang.org/x/oauth2/google/testdata/
 /vendor/golang.org/x/oauth2/jwt/example_test.go
 /vendor/golang.org/x/oauth2/jwt/jwt_test.go
-/vendor/golang.org/x/text/encoding/testdata
-/vendor/golang.org/x/text/language/testdata
-/vendor/golang.org/x/tools/go/gcimporter15/testdata
-/vendor/google.golang.org/grpc/benchmark
-/vendor/google.golang.org/grpc/examples
-/vendor/google.golang.org/grpc/interop/client/testdata
-/vendor/google.golang.org/grpc/interop/server/testdata
-/vendor/google.golang.org/grpc/reflection
-/vendor/google.golang.org/grpc/stress
-/vendor/google.golang.org/grpc/test
-/vendor/google.golang.org/grpc/testdata
-/vendor/google.golang.org/grpc/transport/testdata
-/vendor/myitcv.io/gogenerate/_testFiles
-/vendor/myitcv.io/react/examples
 /vendor/myitcv.io/react/internal/dev/dev.inc.js
 /vendor/myitcv.io/react/internal/preact/preact.inc.js
 /vendor/myitcv.io/react/internal/prod/prod.inc.js
-/vendor/myitcv.io/react/_scripts
-/vendor/myitcv.io/react/_talks
-/vendor/myitcv.io/react/_vendor
-/vendor/rsc.io/pdf/pdfpasswd/main.go