fix(tests): install required go dependencies

Author: Gabriel Monroy

tests/bin/test-setup.sh

@@ -49,6 +49,10 @@ echo ; echo
 # disable git+ssh host key checking
 export GIT_SSH=$DEIS_ROOT/tests/bin/git-ssh-nokeycheck.sh
 
+# install required go dependencies
+go get -v github.com/golang/lint/golint
+go get -v github.com/tools/godep
+
 # cleanup any stale example applications
 rm -rf $DEIS_ROOT/tests/example-*