Remember the last window size & position

[cheahkhing]

It's a bit troublesome right now every time i re-open my fenix servers, i need to resize the window and move it. i always need to see the logs, so without resizing the window, it's all jammed in a small window, it's very hard to see. Hopefully fenix can remember the last resized size as well as the window position.

[coreybutler]

I originally had it this way, but the feedback I got from the initial beta audience indicated they'd rather have it start the way it does. However; that was a small audience. If there are enough people interested in this, I can put it back in, or perhaps I can make it a setting in the future.