- really abort on errors
- add .gitignore for generated files
- print path to relevant log files on errors
- do not print standard output of tools to focus on important stuff
- remove a leftover config file

Adresses Issue #30

Also, demote the GUI message from Error to Warn (and log it accordingly at the
same place)

Although they were primarily used for testing, the accompaning README
explain how a user could take the first steps with FIJI by experimenting with
these files.

Addresses issue #2.

fiji_setup: do not add extra line break to error messages if validation fails when saving configurations

Also, fix minor bug when output directory could not be created.

Also, retrieve unsorted parser elements in FIJI netlist.
The Verilog::Perl functions with the _sorted do sort their return values.
However, the order usually does not matter to us at all.