remove travis automation as their pricing changed (#480)

Signed-off-by: Felix Bartels <felix@host-consultants.de>

.travis.yml-deactivated

@@ -0,0 +1,45 @@
+sudo: required
+dist: bionic
+language: node_js
+
+node_js:
+  - stable
+services:
+  - docker
+before_install:
+  - sudo rm /usr/local/bin/docker-compose # remove pre-installed docker-compose (too old)
+  - bash -x .ci/setup-tools.sh
+  - .ci/travis-buildkit.sh # upgrade docker for buildkit support
+install:
+  - "./version.sh"
+  - make lint
+  - "./tests/test.exp"
+  - "./version.sh"
+  - commander test tests/commander.yaml
+  - make lint # rerun lint to see if output is different with .env in place
+  - echo "docker_repo=$docker_repo" >> .env
+  - echo "DOCKERREADME=yes" >> .env # add DOCKERREADME env var so that make publish also updates readme files on docker hub
+  - echo "KCCONF_SERVER_SURVEYCLIENT_INTERVAL=0" >> kopano_server.env
+  - echo "KOPANO_SURVEYCLIENT_ENABLED=false" >> kopano_konnect.env
+  - echo "KOPANO_SURVEYCLIENT_ENABLED=false" >> kopano_kwmserver.env
+  - travis_retry make build-all
+script:
+  - make test-ci
+  - docker-compose down -v
+  - make test-startup-meet-demo
+deploy:
+  # login to docker hub
+  - provider: script
+    skip-cleanup: true
+    script: echo "$docker_pwd" | docker login -u "$docker_login" --password-stdin
+    on:
+      branch: master
+  # push images
+  - provider: script
+    skip-cleanup: true
+    script: make publish
+    on:
+      branch: master
+#cache: # uncomment to not load/upload trivy files each time
+#  directories:
+#    - $HOME/.cache/trivy