Fur & sleeping

This adds warmth bonuses when sleeping for various body-coverings.  Fur
mostly; furred folks also get a break on floor conditions.
adding blockhead tileset
Update tileset.txt
Fixed misalignment of headlights on armored car
give a bindle to hobo
fix flag typo, remove anger trigger, and set aggressiveness to -99 for jumping spiders
Merge branch 'master' of https://github.com/blockhead123/Cataclysm-DDA into merge
Merge branch 'master' of https://github.com/QuantumTangler/Cataclysm-DDA into merge
Merge branch 'hobo' of https://github.com/illi-kun/Cataclysm-DDA into merge
Merge branch 'jumping_spider_patch' of https://github.com/cdepatie/Cataclysm-DDA into merge
Remove duplicate headlight

There's already a headlight there; this line was a third light which was
present and I'm presuming was a mistake.  If it wasn't, whoever put it
in can PR its re-addition and I'll merge that.

-KA101.
Merge pull request #7487 from KA101/gengineering

Fur & sleeping
Fixes discrepancy in crossbow trap.

As reported here:   http://smf.cataclysmdda.com/index.php?topic=6319.0
remove some UI calls from overmap creation
check curammo for being NULL in item::reload
Merge pull request #7498 from Rivet-the-Zombie/crossbow-trap-recipe-fix

Fixes discrepancy in crossbow trap.
refresh screen after debug message
Merge branch 'crash-fix' of https://github.com/BevapDin/Cataclysm-DDA into merge
Merge branch 'overmap-something' of https://github.com/BevapDin/Cataclysm-DDA into merge