Switch from travis to semaphore

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

.travis.yml

-language: ruby
-cache:
-  directories:
-  - vendor/bundle
-env:
-  global:
-    - TRAVIS=true
-  matrix:
-    - TASK=spinach_project DB=mysql
-    - TASK=spinach_other DB=mysql
-    - TASK=spec:api DB=mysql
-    - TASK=spec:feature DB=mysql
-    - TASK=spec:other DB=mysql
-    - TASK=jasmine:ci DB=mysql
-    - TASK=spinach_project DB=postgresql
-    - TASK=spinach_other DB=postgresql
-    - TASK=spec:api DB=postgresql
-    - TASK=spec:feature DB=postgresql
-    - TASK=spec:other DB=postgresql
-    - TASK=jasmine:ci DB=postgresql
-before_install:
-  - sudo apt-get install libicu-dev -y
-install:
-  - "travis_retry bundle config build.nokogiri --use-system-libraries"
-  - "travis_retry bundle install --deployment --without production --retry 5"
-branches:
-  only:
-    - 'master'
-rvm:
-  - 2.0.0
-services:
-  - redis-server
-before_script:
-  - "cp config/database.yml.$DB config/database.yml"
-  - "cp config/gitlab.yml.example config/gitlab.yml"
-  - "bundle exec rake db:setup"
-  - "bundle exec rake db:seed_fu"
-script: "bundle exec rake $TASK --trace"
-notifications:
-  email: false
-git:
-  depth: 10