Icecoon weapon pack update

Removed some weapon, but made mod and 3 conversion kits.
Recipes now give new handloaded ammo.
Added ammo pulling.
Typo
Unremoved deleted weapon.

For savegames sake, but stil no spawn for them
No longer asks you to swap your wielded item with the item you're
picking up if it is the same item type
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
Increase warmth of lowtop shows from 0 to 15
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
Merge pull request #8681 from Mshock777/master

Icecoon weapon pack update
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