Comment 1 for bug 164159

I think this was originally my intention but seems I got distracted about the behavior when running from sources. I keep a variable this(appPath) which means:
    # 'appPath' points to folder which contains:
    # Coccinella.tcl if run from sources
    # Coccinella*.exe on Windows
    # Coccinella*.bin on Unix
    # Coccinella*.app on Mac OS X
and when running from sources I have to get one directory level up, but otherwise this(appPath) points exactly to the folder where to put the prefs folder. Untested!