Core logs should indicate the version used to generate them

[psybers]

The <itrace_core> tag currently includes attributes like the session id etc. It should also indicate which version of iTrace core was being run, which could aid replicability. I recommend adding a version attribute.

[psybers]

You can get the assembly's version with something like this:

using System;
using System.Reflection;

private string GetVersionString()
{
    return Assembly.GetEntryAssembly().GetName().Version.ToString();
}

and then in itrace_core/XMLGazeDataWriter.cs add this to the WriteSessionInformation() method (line 47):

xmlTextWriter.WriteAttributeString("version", GetVersionString());

Could possibly cache the version info into the session manager.