Register entities server-side
Added render/entity IDs to config

Cannot add GUI IDs; SC2_GuiHandler requires constant expression.
Pull upstream
Register entities server-side
Added render/entity IDs to config

Cannot add GUI IDs; SC2_GuiHandler requires constant expression.
Merge branch 'master' of https://github.com/general3214/Steamcraft-2
Merge pull request #6 from general3214/master

IDs and stuff