Simplifies the CI of this package by re-using definitions in bob/bob.devtools (bdt)

This update only brings the CI (.gitlab-ci.yml) file in sync with the rest of BEAT packages (using bob/bob.devtools's bdt)

.gitlab-ci.yml

-# This build file uses template features from YAML so it is generic enough for
-# any Bob project. Don't modify it unless you know what you're doing.
+include: 'https://gitlab.idiap.ch/bob/bob.devtools/raw/master/bob/devtools/data/gitlab-ci/single-package.yaml'
 
-# Definition of global variables (all stages)
-variables:
-  CONDA_ROOT: "${CI_PROJECT_DIR}/miniconda"
-
-
-# Definition of our build pipeline order
+# Redefines the pipeline order for this package only
 stages:
   - build
   - browser-tests
   - deploy
   - pypi
 
-
-# Build targets
-.build_template: &build_job
-  stage: build
-  before_script:
-    - mkdir _ci
-    - curl --silent "https://gitlab.idiap.ch/bob/bob.admin/raw/master/gitlab/install.sh" > _ci/install.sh
-    - chmod 755 _ci/install.sh
-    - ./_ci/install.sh _ci master #installs ci support scripts
-    - ./_ci/before_build.sh
-  script:
-    - ./_ci/build.sh
-  after_script:
-    - ./_ci/after_build.sh
-  cache: &build_caches
-    paths:
-      - miniconda.sh
-      - ${CONDA_ROOT}/pkgs/*.tar.bz2
-      - ${CONDA_ROOT}/pkgs/urls.txt
-
-
-.build_linux_template: &linux_build_job
-  <<: *build_job
-  tags:
-    - docker
-  image: continuumio/conda-concourse-ci
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - _ci/
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
-  cache:
-    <<: *build_caches
-    key: "linux-cache"
-
-
-.build_macosx_template: &macosx_build_job
-  <<: *build_job
-  tags:
-    - macosx
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - _ci/
-      - ${CONDA_ROOT}/conda-bld/osx-64/*.tar.bz2
-  cache:
-    <<: *build_caches
-    key: "macosx-cache"
-
-
-build_linux_36:
-  <<: *linux_build_job
-  variables:
-    PYTHON_VERSION: "3.6"
-    BUILD_EGG: "true"
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - _ci/
-      - dist/*.zip
-      - sphinx
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
-
-
-build_macosx_36:
-  <<: *macosx_build_job
-  variables:
-    PYTHON_VERSION: "3.6"
-
-
 # Docker host based testing (must be run inside dind or docker-enabled host)
-.browser_test_linux_template: &linux_browser_test_job
+browser_test:
+  extends: .test_linux_template
   stage: browser-tests
   image: docker.idiap.ch/beat/ci.env.editor:0.0.1r0
+  variables:
+    BEAT_BROWSER_TESTS: "true"
+    LANG: "en_US.UTF-8"
+    LANGUAGE: "en_US:en"
+    LC_ALL: "en_US.UTF-8"
+  dependencies:
+    - build_linux_36
   before_script:
-    # safe keep artifacts as before_build.sh will erase those...
     - apt-get update > /dev/null
     - apt-get install -y locales > /dev/null
     - echo "en_US UTF-8" > /etc/locale.gen
     - locale-gen en_US.UTF-8
-    - export LANG=en_US.UTF-8
-    - export LANGUAGE=en_US:en
-    - export LC_ALL=en_US.UTF-8
-    - mv ${CONDA_ROOT}/conda-bld .
-    - ./_ci/install.sh _ci master #updates ci support scripts
-    - ./_ci/before_build.sh
-    - mv conda-bld ${CONDA_ROOT}
-  script:
-    - export BEAT_BROWSER_TESTS=true
-    - BEAT_BROWSER_TESTS=true BOB_TEST_ONLY=true ./_ci/build.sh
-  after_script:
-    - ./_ci/after_build.sh
-
-
-browser_linux_36:
-  <<: *linux_browser_test_job
-  variables:
-    PYTHON_VERSION: "3.6"
-  dependencies:
-    - build_linux_36
-  tags:
-    - docker
-
-
-# Deploy targets
-.deploy_template: &deploy_job
-  stage: deploy
-  before_script:
-    - ./_ci/install.sh _ci master #updates ci support scripts
-  script:
-    - ./_ci/deploy.sh
-  dependencies:
-    - build_linux_36
-    - build_macosx_36
-  tags:
-    - deployer
-
-
-deploy_beta:
-  <<: *deploy_job
-  environment: beta
-  only:
-    - master
-
-
-deploy_stable:
-  <<: *deploy_job
-  environment: stable
-  only:
-    - /^v\d+\.\d+\.\d+([abc]\d*)?$/  # PEP-440 compliant version (tags)
-  except:
-    - branches
-
-
-pypi:
-  stage: pypi
-  environment: pypi
-  only:
-    - /^v\d+\.\d+\.\d+([abc]\d*)?$/  # PEP-440 compliant version (tags)
-  except:
-    - branches
-  before_script:
-    - ./_ci/install.sh _ci master #updates ci support scripts
-  script:
-    - ./_ci/pypi.sh
-  dependencies:
-    - build_linux_36
-  tags:
-    - deployer