Compress codemirror.js with Closure Compiler

codemirror.js is a large file, and it has a magnificent impact on site
loading time.
http://tools.pingdom.com/fpt/#!/bovKmk/http://dlang.org/

Google's Closure Compiler was able to compress it by about 50%, from 115
KB (118 232 bytes) to 49,4 KB (50 652 bytes).