Merge branch '1.x.x-py3.x'

Included return statement in a example of routine's run method

Included python version in short description lib

Included warning about python 3.3 version support of this lib

Improved setup.py classifiers and fixed run tests line in .travis.yml

Changed documentation link in README.md

Changed documentation to correct branch

Changed code example in documentation to python 3

First version to support python 3.3

Merged with master branch

New branch with 0.* version to support python 2.*

Merge branch 'develop'

Fixed description

Merge branch 'develop'

Description improved