Make the apache log monitor binary configurable in starter.ini

[apolopena]

Problem this feature will solve

multitail can crash silently when run in a terminal window that is way too small. Aditionally in most situations the user is prompted to hit a key in the terminal to continue in order to lauch multitail because multitail is so finiky about the size of terminal it is run in.

Background

This feature stems from #53

Proposed Solution

Add the ability to configure your apache log monitor in starter.ini to something like grc tail /var/log/apache2/error.log /var/log/apache2/access.log
add a variable in the development section of starter 'starter.ini' named apache_log_monitor that accepts the values tail and multitail

Constraints and Assumptions

the tail call will depend on grc
Use a custom color configuration for grc

Alternatives or Workarounds

Do it manually on every creation of a workspace every time multitail fails

Additional context

tail is too ugly without something like grc to brighten the day ;) but it does now support multiple files.
Users may still want to use multitail however since it is prone to crashing silently and was never designed to run in a Docker container, offer a colorized tail.