fix(Makefile): ensure the installer makes /var/lib/deis/units readable

Author: mboersma

Makefile

@@ -8,8 +8,8 @@ installer:
 	godep go build -a -o dist/deisctl .
 	@if [ ! -d makeself ]; then git clone -b deisctl-hack https://github.com/deis/makeself.git; fi
 	PATH=./makeself:$$PATH makeself.sh --bzip2 --nox11 --target /usr/local/bin dist \
-		dist/deisctl-`cat deis-version`-`go env GOOS`-`go env GOARCH`.run \
-		"Deis Control Utility" "deisctl refresh-units"
+		dist/deisctl-`cat deis-version`-`go env GOOS`-`go env GOARCH`.run "Deis Control Utility" \
+		"deisctl refresh-units && chmod 755 /var/lib/deis /var/lib/deis/units && chmod -R 644 /var/lib/deis/units/*"
 
 install:
 	godep go install -v ./...