Provide package version as ev3dev.__version__

Author: ddemidov

.gitignore

@@ -4,3 +4,4 @@ __pycache__
 dist
 *.egg-info
 RELEASE-VERSION
+ev3dev/version.py

ev3dev/__init__.py

@@ -1 +1,3 @@
 from .core import *
+from .version import __version__
+

setup.py

@@ -1,6 +1,9 @@
 from setuptools import setup
 from git_version import git_version
+from spec_version import spec_version
 
+# write version to version.py
+open("ev3dev/version.py", "w").write("__version__='%s (%s)'\n" % (git_version(), spec_version))
 
 setup(
     name='python-ev3dev',