Now there is a class that is responsible for analysing the logs. It reads
its data from a XML that has to be in a specific path and have a specific
structure. However, I will add the possibility to edit it using a GUI in
future commits.
Wow, this became a very big commit. Now it is possible to edit the
failure causes in a web GUI, and the edits are written to and read from
an XML-file. I have also made some improvement to the code in other
areas, for example I wrote a class for all the global variables so that
they are all at one place.