Merge pull request #3 from p0deje/master

Clear caught exception after it's raised
Increase version.
Add gem version badge.
Minor documentation fixes.
Merge branch 'master' of github.com:watir/watir-rails
Add first specs.
Add Travis badge.
Add specs for Watir::Browser.
Merge branch 'master' of github.com:watir/watir-rails
Add Coveralls.
Add Coveralls badge.
Add Rails#boot specs.
Add Rails.host specs.
Merge branch 'master' of github.com:watir/watir-rails
Add specs for Rails.ignore_exceptions?.
Add Rails.running? specs.