[skipfish] Fix missing import.
[parser] Add FileParser parser class.

New parser that load a file line by line, allowing to skip empty line.
[ptp] Fix possible exception in autodetection mode.

Fix TypeError exception miscatch in the autodetection mode due to function
prototypes possible mismatch.
[tests] Allow to chose a specific case test.
[parser] Ensure XML files for XML-based parsers.
[dirbuster] Add support to dirbuster.