Merge pull request #90 from jhermann/dpkg-0.10.0

dpkg 0.10.0
Added --config-file option; fixed some typos; use parser.error() in args validation
read "./setup.cfg" in addition to "~/.nodeenvrc" by default
Merge pull request #91 from jhermann/option-config-file

Added --config-file option
Python 3 comp.
Merge pull request #92 from Alesh/python3comp

Python 3 comp.
python 3 compatibility and some general improvements
Merge pull request #93 from gitaarik/master

python 3 compatibility and some general improvements
pep8
improved tests
improved 'contributors' target in Makefile
update AUTHORS
added echos in tests
0.11.0
moved debian folder into debian-upstream; for packaging in debian for openstack
docs fix for debian-upstream rename
Merge pull request #97 from jhermann/doc-fix-debian-upstream

docs fix for debian-upstream rename
reduced encodings in 'writefile'
improved opening file in 'writefile'
added more readability in 'writefile'