Import more tests into the framework.
Reorganize test HTML and s/mimeParser/jsmime/g.

--HG--
rename : mimeAssemblerHeaders.js => headeremitter.js
rename : mimeParser.js => jsmime.js
rename : test/browser/amd/chai.js => test/browser/chai.js
rename : test/browser/amd/mocha.css => test/browser/mocha.css
rename : test/browser/amd/mocha.js => test/browser/mocha.js
rename : test/browser/amd/node_fs_shim.js => test/browser/node_fs_shim.js