[features] using isalive() to check that the process is running
[features] implementing the exit_command test steps
[features] exit command scenario no longer wip
[features] adding a wip scenario for the add command
[features] extracting repetition into a Background clause
[features] moving welcome message text into the step
[features] moving command prompt text into step
[features] add should also see the welcome screen
[features] adding the add command steps
[features] Improving the add command steps
[bin] adding the do_add() method

This runs the "add" command.
Adding a space to the prompt

This separates commands from the prompts nicely.
Adding a space to end of add command prompt
[features] add command scenario no longer wip