Command line tool (?)

[drvinceknight]

@meatballs has pointed out that the run_axelrod script is packaged (in setup.py) using the script= but it seems this is an older approach and using entry_points could/should be better (http://stackoverflow.com/questions/30518806/python-migrate-setup-py-scripts-to-entry-points).

Another issue regarding this tool is the documentation for it: http://axelrod.readthedocs.org/en/latest/tutorials/getting_started/command_line.html

It needs to be tidied up (clarifying that installing the library installs a run_axelrod tool) and also clarifying the command call (currently 3 different ways are used in the documentation).

[drvinceknight]

Indeed $ run_axelrod.py -h is not actually correct in the documentation...

[drvinceknight]

Could also be worth including https://github.com/noamraph/tqdm in the tool.