When resizing font with Cmd-+/-, allow option for all tabs (present and future)

This isn't a bug so much as a feature request.

I have iTerm2 configured so that if I increase/decrease font-size on the fly, the terminal-dimensions stay the same (the window size grows/shrinks as needed). Nothing is more irritating that:

1. Open Terminal
2. Cmd+Plus a few times to get to the right font size for what I'm working on
3. Realize I need a new tab
4. Open a new tab
5. Realize THAT tab is at the "default" font size If I increase it, I'm changing the window dimensions (which when I go back to the other tab, would be ugly)

There should be an option to "open new tab configured exactly as this one is".

changed milestone to %Review for next version