letsencrypt.py as setuptools console script
gitignore setuptools artifacts
Fix setuptools package resources

https://pythonhosted.org/setuptools/setuptools.html#including-data-files
Update README for setuptools magic.
Merge remote-tracking branch 'github/master' into setuptools-script

Conflicts:
	README.md
	letsencrypt.py
Remove trailing whitespace in README
Merge pull request #22 from kuba/setuptools-script

Setuptools magic