Fixed heaters being invisible when spawned using buildmode, changed their sprites to the heater sprites instead of the freezer sprites. Capitalized the first letter in Heater because else it looks stupid.
Fixed heaters being invisible when spawned using buildmode, changed their sprites to the heater sprites instead of the freezer sprites. De-capitalized heaters and freezers.
Merge branch 'master' of https://github.com/Miauw62/-tg-station
Forgot to decapitalize heaters, that's done now.
Merge pull request #915 from Miauw62/master

Fixed heater sprites