Ignore bundle configuration.
Add test gems.
Add rspec configuration and first test.
Add Guardfile and rspec watch rules.
Add rubocop for linting ruby code.
Add alternative name for gem: viaggia_treno.

Solves rubocop offense for snake name in filename.
Add vcr and webmock for testing.
Add characterization test for Train.

Train is main library's object.
Merge pull request #1 from colmarius/add-test-suite

Add basic test suite