- in case of upcoming failure, this provides a clue in which function the
  failure is to find.

- it is only called once
- easier to have the code of the function in the place where it is called now

Restructure log location

Closes #7

See merge request mpsd-cs/mpsd-software-environments!29

Split logfile templates usage

See merge request mpsd-cs/mpsd-software-environments!39

Update log names and variable names

See merge request mpsd-cs/mpsd-software-environments!37

Rename log related variables

See merge request mpsd-cs/mpsd-software-environments!38

We'll need cloning a repo again for 'available' command, so I'll try to put that
in a function.

More work to come.