[Setools] MagmaReadStrategies

[Göran Krampe]

Hi folks!

> Logging: The class WAMagmaReadStrategyWithQ2Logging, logs realizations
> verbosely to the Q2Log, a logging facility available in Gjallar. This is
> very useful.

Sidenote - I actually ripped out Q2Log into SLLog and put it on SM as a
separate package:

http://map.squeak.org/packagebyname/simplelog

Gjallar should of course switch to use SL, but I forgot to do it.

regards, Göran