ci_build.sh display sorted `env`

 * moving this out of jenkins
Add meta task to encapsulate ci:setup:rspec + unit/integration

  * move logic out of Jenkins
  * fix .gitignore for JUnit reports
sort and cleanup .gitignore
Move ci:rspec:setup into ci_build.sh

 * the JUnit xml is jenkins specific
Travis uses the same testing meta-tasks as Jenkins
ci_build_stemcell.sh prints sorted env
Travis uses '--trace' when executing rake
ci_build_stemcell.sh uses '--trace' when running rake
Enable rubocop for aws/

 * turn off encoding warning globally
Enable rubocop for bat/