change travis file to accommodate dep

.travis.yml

@@ -10,9 +10,8 @@ cache:
   - $HOME/.glide/cache
 
 install:
-  - go get -u github.com/Masterminds/glide 
+  - go get -u github.com/golang/dep/cmd/dep 
-  - cd $GOPATH/src/github.com/Masterminds/glide && go install && cd -
+  - dep ensure
-  - glide install
   - cd vendor/github.com/onsi/gomega && go install && cd -
   - cd vendor/github.com/onsi/ginkgo/ginkgo && go install && cd -