Save "laststatus" and "linespace" to provide visual consistency across editing environments

I use different fonts for editing code and editing long markdown documents. These fonts require a bit of tweaking with regard to the linespace. I also turn off the status bar to allow for a more "minimalist" editing environment (usually fullscreen). Adding these changes does the trick for me. They have few side-effects (they're purely visual) so maybe others might find them useful.