Add --more-notices; JSON & Network diff suppressed; stale submit applog shortened

Couple of vanity patches for applog entries & curses display readout.
It might make sense to have --more-notices be a (hidden) alias for --verbose-work-updates, but I don't see anything else here that's likely to make sense. I certainly do encourage the idea of porting over anything BFGMiner is missing from sgminer, though! Thanks