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* Add an option to disable colored output. The default value is auto,
which will determine if output is a tty and act accordingly. This can be
overridden by setting --color=yes to force color output, or --color=no
to disable it completely.
* Update copyright date

closes grnet/devflow#2

* Catch an uncaught assertion error
* Minor pep8 fixes
* Update copyright date

Extend devflow to support multiple version files of different templates.
To use multiple version files, the user has to define a comma-separated
list of version files and templates in the 'version_file' and
'version_template' options of the configuration file.

s/README/README.md

Add a _bump version function without any validation checking. Use the new
validate_version to perform the validation.

Add argument parser for input.
Add interactive functions for cleanup and changelog editing
Add automatic version bumping.

On hotfix we should merge to master/debian branches. On release, merge with the
develop/debian-develop branches and the master/debian branches.

Conflicts:
	version

fallback to uname command output as a distro codename. This allows
developers to use commands such `update-version` on other than linux
unix-like environments (FreeBSD, OSX etc.).

Add devflow-flow for automatically managing most common tasks for
starting and ending release, hotfix and feature branches.