Some of you might now this by srbs, Cubescript Syntax Highlighting for some Text Editors.
As this is kinda outdated, however, I chose to make a new one, with all the new Commands and also the Keys.
I published it here on Github, to download just go on "Download Zip" on the right side.
Note: This File has all commands/variables of the current Cube 2: Sauerbraten SVN as well as the new one in "Sauerbraten Quality Edition" (a mod i'm developing). But later one shouldn't be a problem, as it doesn't limit functionality or anything else...