Updated README (troubleshooting for Windows dev section) with steps I performed to get running after installing Ruby 2.0.0 p598.
Stubbed out some Ember CLI documentation (content copied directly from http://www.ember-cli.com). Does this look good? If so, I can fix the formatting and dump the rest of the pages.

I'd really like to help update the documentation to be more Ember CLI focused. After there's a good amount of docs on Ember CLI, the older content (ex: the TODO app using Ember 1.3) can be removed from the guide section of this project.
Rolling back change, so only effective change is the README.md

This reverts commit 09099bcd6794b195631ae1771bf416c7e06c7637.
Merge pull request #1825 from bsclifton/master

Updated README (troubleshooting for Windows dev section) with steps I pe...