Logging

[nurupo]

Add an option to log message and file history (maybe call history too, it's too distant to think about it yet).

The defaults for logging are debatable, but I think that:

• Logging should be always encrypted, with no option to turn encryption off.
• Logging should be turned off by default (with an option to tun it on, obviously).

Because it's a secure messenger, storing unencrypted logs is just not an option, and not having logs at all improves the overall security :)

Logging options should be added to already existing logging settings page. Note that there is some logging code commented out here and there.

Logs are to be stored in SQLite database. Messages will be loaded from log little by little as user scrolls Message Display widget up. The same applies for File Transfer widget, but when it is scrolled down. When deleting a friend, all logs regarding that friend should be deleted.

[Schlumpf]

I'm working on a new message handling/display. I will be model based. So this issue depends on this.

[nurupo]

So this issue depends on this.

this issue depends on this? Not sure why you said that #75 depends on #75, but okay.

Also, what did you try to say about the new message display?

[Schlumpf]

:D new try:
The new message display will use a model for handling the messages. So this (#75) will depend on the new model of #62.

[nurupo]

Correct. And #68 should also be completed first for file transfer logging.