Prepare for ruby examples
Add the specs
Add math module
Add selenium-webdriver
Add example capybara specs
Add some page objects
Merge branch 'ruby-stuff'

* ruby-stuff:
  Add some page objects
  Add example capybara specs
  Add selenium-webdriver
  Add math module
  Add the specs
  Prepare for ruby examples
Remove rails
Start to talk about Ruby
Rails is no more