CSV log writer breaks on some platforms

[cmaclell]

We need to set a default utf-8 encoding to instances of the CSV log writer in AL_HTML because some international platforms will default to an incompatible setting.

[eharpste]

It would be great if we had a place to specify this as a configuration parameter rather than locking everything into UTF-8 with in-line parameters. Seems like the best place to do that here would be in net.conf, as the only configuration file for this project, but that seems like the wrong place generally.

[eharpste]

This was hot fixed as part of the summer school last year and may not have been fully caught. We should double check this is implemented everywhere we write a file.