Fixes #3642
Fixed a runtime issue with demonsblood.  Was causing runtimes because data was inheriting the bloods data var (which is a list).

The drink will still maintain it's reagents and data vars but when ingested and procesed the blood is ignored.

Downsides, you can't get sick from ingesting blood in a drink (which..you shouldn't anywho)

Possible future updates:  since blood is an amnetic substance make the person have nausia for ingesting it if quantities are high
Can no longer commit suicide with a lasertag gun.

And you will feel silly for even making the attempt.
Changelog update for Master (Ccomp5950)

Stuff I've worked on since.
Merge pull request #3972 from Zuhayr/master

Fixes #3642
Merge pull request #3974 from Ccomp5950/demonblood_runtime

Fixed a runtime issue with demonsblood.
Merge pull request #3975 from Ccomp5950/lasertag_suicide

Can no longer commit suicide with a lasertag gun.
Custom HUD and colored windows
Merge branch 'actual' of https://github.com/nan0desu/Baystation12 into actual
fixes
Merge remote-tracking branch 'bay12/master' into actual