dep -> govendor

vendor/github.com/go-gl/gl/.travis.yml

@@ -0,0 +1,21 @@
+sudo: false
+addons:
+  apt_packages:
+    - libgles2-mesa-dev
+language: go
+go:
+  - 1.8.x
+  - 1.4.x
+  - master
+matrix:
+  allow_failures:
+    - go: master
+  fast_finish: true
+install:
+  - # Do nothing. This is needed to prevent default install action "go get -t -v ./..." from happening here (we want it to happen inside script step).
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d -s .)
+  - # vet is reporting "possible misuse of unsafe.Pointer", need to fix that.
+  - # go tool vet .
+  - go test -v -race ./...