Switches to HashiCorp fork of jteeuwen/go-bindata.

We make a HashiCorp hard fork of the jteeuwen/go-bindata hard fork that
was replaced and diffed the code against a Dec 1, 2015 copy of the
original repository we had as a cross-check of that hard fork.

This replaces references to jteeuwen/go-bindata to point to the
HashiCorp fork.

GNUmakefile

@@ -148,7 +148,7 @@ deps:  ## Install build and development dependencies
 	@echo "==> Updating build dependencies..."
 	go get -u github.com/kardianos/govendor
 	go get -u github.com/ugorji/go/codec/codecgen
-	go get -u github.com/jteeuwen/go-bindata/...
+	go get -u github.com/hashicorp/go-bindata/...
 	go get -u github.com/elazarl/go-bindata-assetfs/...
 	go get -u github.com/a8m/tree/cmd/tree
 	go get -u github.com/magiconair/vendorfmt/cmd/vendorfmt