travis: Update import paths for Go 1.4.

.travis.yml

@@ -8,20 +8,18 @@ env:
     - secure: "AP4LEOpS4UspqZCkswzkNNWWlPTckS7C6Aoqm1wNFqidBTqeqCj6p1FR5WgmIItILoO+/tKwIVdRT5A0oJalNnaLluc5YANnaaLohn/YWs3/UVzmNowgQG0Ee/YUT1yNhgdfLHASE/QY102mrD4GRHDA4j8PWFv+uga4rOLamUo="
     - PATH=$HOME/gopath/bin:$PATH
 
-# TODO(u): Update import path of vet and cover when Travis starts using Go 1.4.
-
 before_install:
-  - go get code.google.com/p/go.tools/cmd/cover
-  - go get code.google.com/p/go.tools/cmd/vet
+  - go get golang.org/x/tools/cmd/cover
   - go get golang.org/x/tools/cmd/goimports
+  - go get golang.org/x/tools/cmd/vet
   - go get github.com/golang/lint/golint
   - go get github.com/mattn/goveralls
 
 install:
   - go get github.com/mewmew/playground/...
 
 before_script:
-  - wget https://gist.githubusercontent.com/mewmew/379014c9a2e6885e238d/raw/fb0c7d164113b1428f886dd470a613c74b9a9997/goclean.sh
+  - wget https://gist.github.com/mewmew/379014c9a2e6885e238d/raw/goclean.sh
   - chmod +x goclean.sh
 
 script: