Project to host end-to-end integration tests
Using selenium for e2e tests.
Setting up rspec for capybara.
Beggining first e2e feature.

It requires that the frontend and the transactions
engine are both running.
Using service_manager to start the frontend service.
Test spawning backend service as well.

Had to fork service_manager to make it
to play well with rvm-lauched rack process.
Improving the initial spec a little