Documenting a few things a bit more, and adding some outlines.
Upgrade selenium-webdriver from 2.40.0 -> 2.41.0
Mark areas for improvement.
Add gem badge.
Add note about development.
Merge pull request #13 from plasticine/upgrade-webdriver

Upgrade selenium-webdriver from 2.40.0 -> 2.41.0
Merge pull request #14 from plasticine/readme

Readme
Upgrade a bunch of deps
Upgrade some dev gems
Merge branch 'master' into example-app

Conflicts:
	Gemfile.lock
	simulacrum.gemspec