Cping

* Improved error-handling for the ping process

> Upgrade with `pip3 install -U cping`

* All errors from the ping process are now captured
* cPing stops when all no workers are running (i.e. they all errored-out)

> Upgrade with `pip3 install -U cping`

* Fixed race-condition that registered a non-existent loss.
* TCP tests are no longer subject to start up delay
* Optimized program exit delay

> Upgrade with `pip3 install -U cping`

* A bit of code restructuring/cleanup

> Upgrade with `pip3 install -U cping`

* Fixed race-condition (mutation during iteration)

> Upgrade with `pip3 install -U cping`

* Added success percentage

> Upgrade with `pip3 install -U cping`