Set up continuous integration

[ppodgorsek]

Travis is probably one of the best options for Github projects.

[ppodgorsek]

Once the associated pull request is merged, Travis CI can be set up by login into https://travis-ci.org/ and enabling the build for the spring-test-dbunit repository.
Once done, remember to edit the Github project settings > Branches > Branch protection rules > Add rule for branch "master" > select the following options:

• Require pull request reviews before merging
  • At least one required approver
  • Dismiss stale pull request approvals when new commits are pushed
• Require status checks to pass before merging
  • Require branches to be up to date before merging
  • Select the Travis CI webhook
• Include administrators