Content length calculated in browser didn't match what was set by Node.js when containing emojis

[jhsware]

The only changes I made was in src/browser.js then when I compiled I noticed there were lots of changes to the compiled files. You might want to check that out, not sure if it was intended behavior and not even sure if those files should have been commited.

Also, jshint failed both on compile and browser test. This was outside the scope of my changes AFAIK so I ignored it and commited anyway.

https://github.com/jakutis/httpinvoke/issues/17