Encrypt slack token at travis config

Author: rmk135

.travis.yml

@@ -1,43 +1,45 @@
 sudo: false
-install: 
- - pip install tox
+install:
+- pip install tox
 script:
- - tox
+- tox
 language:
- - python
+- python
 matrix:
  include:
-  - python: 3.6
-  env: TOXENV=coveralls DEPENDENCY_INJECTOR_DEBUG_MODE=1
-  install:
-  - pip install tox
-  - pip install cython
-  - make cythonize
-  - python: 3.6
-  env: TOXENV=pylint
-  - python: 3.6
-  env: TOXENV=flake8
-  - python: 3.6
-  env: TOXENV=pydocstyle
-  - python: 2.7
-  env: TOXENV=py27
-  - python: 3.4
-  env: TOXENV=py34
-  - python: 3.5
-  env: TOXENV=py35
-  - python: 3.6
-  env: TOXENV=py36
-  - python: 3.7
-  env: TOXENV=py37
-  sudo: required
-  dist: xenial
-  - python: 3.8
-  env: TOXENV=py38
-  sudo: required
-  dist: xenial
-  - python: pypy
-  env: TOXENV=pypy
-  - python: pypy3
-  env: TOXENV=pypy3
+ - python: 3.6
+ env: TOXENV=coveralls DEPENDENCY_INJECTOR_DEBUG_MODE=1
+ install:
+ - pip install tox
+ - pip install cython
+ - make cythonize
+ - python: 3.6
+ env: TOXENV=pylint
+ - python: 3.6
+ env: TOXENV=flake8
+ - python: 3.6
+ env: TOXENV=pydocstyle
+ - python: 2.7
+ env: TOXENV=py27
+ - python: 3.4
+ env: TOXENV=py34
+ - python: 3.5
+ env: TOXENV=py35
+ - python: 3.6
+ env: TOXENV=py36
+ - python: 3.7
+ env: TOXENV=py37
+ sudo: required
+ dist: xenial
+ - python: 3.8
+ env: TOXENV=py38
+ sudo: required
+ dist: xenial
+ - python: pypy
+ env: TOXENV=pypy
+ - python: pypy3
+ env: TOXENV=pypy3
 notifications:
- slack: ets-labs:g9OU0r5PXjA5ueeoQw01dVvV
+ slack:
+ rooms:
+ secure: CdWDgKnfYW7vvvoH3nS3yg3TcNZiYLRUyEp6ukQ4rQiiuR4+ltuvyGyFJWgP8r7VVJ9yHkB0jebCKWLUMsAEt1my33B6eMDEVefovpkdh2eJjGswmm80brt0EJULpgwPOtB1U47Mwca8L5jDW4KSv9RypUFRgn8eHDoWw6LKf5g=