The .travis.yml file was copied from the Travis CI Getting started guide
which can be found in this link:https://docs.travis-ci.com/user/getting-started/
or on the Travis CI homepage.

The file is added to initialize Travis CI.

Travis CI is a continuous integration service used to test and build
software. It enables open source projects to be tested.
https://en.wikipedia.org/wiki/Travis_CI
Currently the tests are failing due to a false configuration
in the -travis.yml file. This will be fixed in future commits.

A new entry was created in the -travis.yml file to enable the
testing on ruby version 2.1.

Looks like your app's ./bin/rails is a stub that was generated by Bundler.

In Rails 4, your app's bin/ directory contains executables that are versioned
like any other source code, rather than stubs that are generated on demand.

Here's how to upgrade:

  bundle config --delete bin    # Turn off Bundler's stub generator
  rake rails:update:bin         # Use the new Rails 4 executables
  git add bin                   # Add bin/ to source control

You may need to remove bin/ from your .gitignore as well.

When you install a gem whose executable you want to use in your app,
generate it and add it to source control:

  bundle binstubs some-gem-name
  git add bin/new-executable

Update spec files.

Replace "rake" with "rails"

Database.yml

Remove: <%= app_secret %>

Two gems are added to the Gemfile. This enable the use of capybara and
byebug.

Exception for deprecated syntax was added.
Rspec no longer requires "expect" instead of "should".

The line "require 'byebug'" wasd added to enable byebug
and to get rid of errors during tests.
Note:if you wish to use byebug you will have to uncomment the line.