Improves release process via Makefile and doc

Adds `Makefile` `release/*` target.

Author: AndreMiras

CHANGELOG.md

@@ -1,12 +1,13 @@
 # Change Log
 
 ## [Unreleased]
+
   - Update buildozer, p4a, and ndk versions, refs #21
   - Publish to F-Droid, refs #20
   - Improve Android camera permission handling, refs #12, #16
   - Use upstream autofocus, refs #8
 
-## [20190902]
+## [2019.0902]
 
   - Update Cython for Python3.7 support, refs #35
   - Make garden.zbarcam a package again, refs #36

Makefile

@@ -5,6 +5,7 @@ GARDEN=$(VENV_NAME)/bin/garden
 PYTHON=$(VENV_NAME)/bin/python
 ISORT=$(VENV_NAME)/bin/isort
 FLAKE8=$(VENV_NAME)/bin/flake8
+TWINE=`which twine`
 SOURCES=src/ tests/ setup.py setup_meta.py
 # using full path so it can be used outside the root dir
 SPHINXBUILD=$(shell realpath venv/bin/sphinx-build)
@@ -134,3 +135,12 @@ lint: isort-check flake8
 
 docs:
 	cd $(DOCS_DIR) && SPHINXBUILD=$(SPHINXBUILD) make html
+
+release/build:
+	rm -rf dist/ build/
+	$(PYTHON) setup.py sdist bdist_wheel
+	$(PYTHON) setup_meta.py sdist bdist_wheel
+	$(TWINE) check dist/*
+
+release/upload:
+	$(TWINE) upload dist/*

doc/source/release.md

@@ -8,15 +8,15 @@ This is documenting the release process.
 Make sure the CHANGELOG.md is up to date and follows the http://keepachangelog.com guidelines.
 Start the release with git flow:
 ```sh
-git flow release start YYYYMMDD
+git flow release start YYYY.MMDD
 ```
 Now update the [CHANGELOG.md](/CHANGELOG.md) `[Unreleased]` section to match the new release version.
 Also update the `version` string from the
 [src/kivy_garden/zbarcam/version.py](https://github.com/kivy-garden/zbarcam/blob/develop/src/kivy_garden/zbarcam/version.py)
 file.
 Then commit and finish release.
 ```sh
-git commit -a -m "YYYYMMDD"
+git commit -a -m "YYYY.MMDD"
 git flow release finish
 ```
 Push everything, make sure tags are also pushed: