Readded Python 2.7 support, but still use print as function

I will set a virtualenv for testing Python 2.7 version support so I can
at least do some basic testing.

I will try to support Python 2.7 until I need to use some modern
feature from Python 3.x series. When this happens I will proper bump
major application version instead of removing on a minor revision.

This reverts commit 5a60c43f0fada1d5bc1e924a834953f0ec22c303.

Conflicts:
	src/livedumper/common.py
	src/livedumper/dumper.py
Bump version

Is it ironic that I removed Python 2 support in version 0.1.2 and
readded in version 0.1.3?