Split lib/utils.js into multiple files. Some of the functions were
generic, these were moved into files in lib/utils. Other funtions were
specific for the compiler, these were moved to files in lib/compiler.
This commit only moves functions around -- there is no renaming and
cleanup performed. Both will come later.
Modules now generally store the exported object in a named variable or
function first and only assign |module.exports| at the very end. This is
a difference when compared to style used until now, where most modules
started with a |module.exports| assignment.
I think the explicit name helps readability and understandability.
Includes:
* Moving the source code from /src to /lib.
* Adding an explicit file list to package.json
* Updating the Makefile.
* Updating the spec and benchmark suites and their READMEs.
Part of a fix for GH-32.
