Allow 100% packet loss or corruption

[pdavies]

I wanted to use tcconfig to simulate loss of connectivity to another machine, by setting

--loss 100 --network <IP>.

This failed, due to a max packet loss rate of 99%. However, tc accepts 100% and appears to work fine, so I think a 100% limit is more useful.

I also changed max corruption rate for the sake of consistency.

😃

[thombashi]

Thank you for the pull request.

I've merged and update the package to 0.7.0-alpha-2.
You can upgrade with pip install tcconfig --pre --upgrade command.

The reason to limit max packet loss to 99% was that I was worried 100% packet loss setting may cause some problems. However, surely 100% packet loss is one of the use cases.