Travis YML file to run dmdoc and upload its output to GitHub pages

.travis.yml

language: generic
dist: xenial
sudo: false

branches:
  except:
  - ___TGS3TempBranch
  - ___TGSTempBranch

matrix:
  include:
    - name: "DreamChecker"
      install:
        - wget -O ~/dreamchecker "https://github.com/SpaceManiac/SpacemanDMM/releases/download/suite-1.0/dreamchecker"
        - chmod +x ~/dreamchecker
        - ~/dreamchecker --version
      script:
        - ~/dreamchecker

    - name: "Generate Documentation"
      # Only run for non-PR commits to the real master branch
      if: branch = master AND head_branch IS blank
      install:
        - wget -O ~/dmdoc "https://github.com/SpaceManiac/SpacemanDMM/releases/download/suite-1.0/dmdoc"
        - chmod +x ~/dmdoc
        - ~/dmdoc --version
      before_script:
        # Try to put git back on a branch name if it isn't already.
        - git checkout -qf $(git name-rev --name-only HEAD) || true
      script:
        - ~/dmdoc
      deploy:
        provider: pages
        skip_cleanup: true
        local_dir: dmdoc
        github_token: $DMDOC_GITHUB_TOKEN