Add release process and notes

Makefile

@@ -15,4 +15,21 @@ setup:
 	npm install -g --prefix node_modules/ gitbook-cli
 	gitbook install
 
-.PHONY: test site deploy-site setup
+release: release-check test
+	# Update version example in README.md
+	sed -i "s/[0-9]\+\.[0-9]\+\.[0-9]\+/$(version)/" README.md
+	# Update notes for unreleased version
+	sed -i "s/^## master$$/## $(version)/" NEWS.md
+	# Last review.
+	$(EDITOR) NEWS.md
+	# Create release commit and tag.
+	git diff --exit-code --quiet || git commit -a -m "Version $(version)"
+	git tag -a -m "Version $(version)" $(version)
+	@echo "Publish release using: git push origin master $(version)"
+
+release-check:
+ifndef version
+	$(error Please define a version: `make release version=x.y.z`)
+endif
+
+.PHONY: test site deploy-site setup release release-check

NEWS.md

@@ -0,0 +1,13 @@
+# Release notes
+
+## 0.1.0
+
+First official release based on Mesos version 0.25.0.
+
+The main features are:
+
+ - Mesos master running Marathon 0.13.0 and Chronos 2.4.0
+ - Mesos agent with Docker containerizer and cgroups isolation enabled
+ - Mesos DNS 0.5.1 for core service discovery
+ - Marathon load balancer using HAProxy for SSL and proxying to internal
+   applications

SUMMARY.md

@@ -1,5 +1,6 @@
 # Summary
 
+- [Release Notes](NEWS.md)
 - [Contributing](CONTRIBUTING.md)
 - [Roles](roles/README.md)
   - [Mesos](roles/mesos/README.md)