Add missing irradiated fruits.

Small tool changes for me who is not great with sed or awk and doesn't
like the speed of graphical multi-file search.
Fix an off-by-one error:

The invalid population is 2147483647, not 2147483648.
Save compatibility for changed bionic power scale.

Bumps savegame_version
Fix Metabolic Interchange giving power above maximum:

Add check for enough free power capacity before adding power.
Fix display of ammo comparision:

Lower dispersion is better.
Higher damage, Armor-pierce, Range is better.
Use same code for ammo and for ammo-container.
Change label from "Count" to "Default stack size".

Same for guns.
Removed unneeded code from mapdata.cpp & mapdata.h. (From SAIs and power stations)
Merge remote-tracking branch 'upstream/master' into radfruits
Added oven spawns to mansion kitchens
NPC: don't add charges to the starting weapon when it has no valid default ammo.
Merge branch 'bugfixes' of https://github.com/BevapDin/Cataclysm-DDA into merge
Merge branch 'radfruits' of https://github.com/jeremyosborne/Cataclysm-DDA into merge
Merge branch 'item-description-bionic-power-bugfix' of https://github.com/BevapDin/Cataclysm-DDA into merge
Merge branch 'remove_unneeded_code' of https://github.com/DragonLaggin/Cataclysm-DDA into merge
Merge branch 'mansionoven' of https://github.com/Voker57/Cataclysm-DDA into merge
Merge branch 'crash-fix' of https://github.com/BevapDin/Cataclysm-DDA into merge