iLib comes with a pre-assembled copy and a pre-assembled and pre-compiled copy of the iLib file called iliball.js and iliball-compiled.js. The compiled version is compiled with the Google Closure Compiler both to compress all the white space, comments, and symbols, and to verify syntax and data types.
These pre-made copies contain all iLib classes, and all the data for those classes for a number of popular locales. This might not be what you need. If you want a smaller version with a select subset of the classes, or if you need a different selection of locales, you will need to re-assemble your own copy of it. Fortunately, this is pretty easy to do with the assembly tool.
In order to run the assembly tool, you will need to install a few things and make them available in your path:
iLib comes with everything else needed to assemble your own copy of it.
See the iLib 1.0 Tutorial for more information on how to run the assembly tool.
Wiki: iLib - an internationalization library written in Javascript