0.0.2-rc1 fixes

[jukkae]

• [x] Hide STI bonuses and penalties from gui
• [x] Iodine should hold its effect longer
• [x] Radiation level should affect radiation damage, not only frequency
• [x] Not so many unnecessary radiation prints
• [x] "Your shot misses"
• [x] Separate guns with bullets from those without
• [x] Message about not being hungry
• [x] </> to help
• [ ] Picking up items that have been dropped sometimes segfaults
• [x] Hard-to-see item colors, especially bright green

[jukkae]

Can't replicate segfault.