Bad standard output when executing scripts

[mindsers]

Custom scripts execution via configfile show the right output data but not in the expected format.

Actual behavior

For each new stdout data, configfile print it with \n at the end.

Expected behavior

configfile must print stdout data exactly as the custom script or command line want to print it :

• with \r to re-print the last line (progress bar, etc.)
• with \n when the script want to go next line
• with nothing when then script don't want to go next line

Exact restitution is wanted.

[mindsers]

Since #57, no additional character is added to the stdtout and stderr of executed scripts. This new behavior is handle by printRawText() and printRawError of MessageService.

An unexpected result is that the output is now less readable than before.