Update distribution scripts.

Makefile

 PROJECT = yangson
+VERSION = 1.2.0rc1
 .PHONY = tags deps install-deps test
 
 tags:
@@ -12,3 +13,12 @@ install-deps:
 
 test:
 	@py.test tests
+
+release:
+	git tag -a -m "Yangson release $(VERSION)"
+	rm dist/*
+	python setup.py sdist
+	python setup.py bdist_wheel
+
+upload:
+	twine upload dist/*

docs/conf.py

@@ -15,6 +15,7 @@
 
 import sys
 import os
+from pkg_resources import get_distribution
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -59,10 +60,10 @@ author = 'Ladislav Lhotka'
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
-# The short X.Y version.
-version = '1.1'
 # The full version, including alpha/beta/rc tags.
-release = '1.1.0'
+release = get_distribution('yangson').version
+# The short X.Y version.
+version = '.'.join(release.split('.')[:2])
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

setup.py

@@ -3,12 +3,16 @@ from setuptools import setup
 setup(
     name = "yangson",
     packages = ["yangson"],
-    version = "1.1.0",
+    use_scm_version = True,
+    setup_requires=["setuptools_scm"],
     description = "Library for working with data modelled in YANG",
     author = "Ladislav Lhotka",
     author_email = "lhotka@nic.cz",
     url = "https://github.com/CZ-NIC/yangson",
-    install_requires = ['PyXB'],
+    entry_points = {
+        "console_scripts": ["yangson=yangson.__main__:main"]
+        }
+    install_requires = ["PyXB"],
     tests_require = ["pytest"],
     keywords = ["yang", "data model", "configuration", "json"],
     classifiers = [