update packages for travis-ci (#36)

Author: pavelpikta

.travis.yml

@@ -13,7 +13,7 @@ before_install:
   - git clone https://github.com/lean-delivery/ansible-lint-rules.git ~/ansible-lint-rules
 
 install:
-  - pip install --upgrade ansible==2.5.* docker-py molecule==2.17 pyOpenSSL PyYAML pytest==3.7.4
+  - pip install --upgrade ansible==2.7.* docker-py molecule==2.20 pyOpenSSL PyYAML pytest
   - pip install git+https://github.com/ansible/ansible-lint.git
   - ansible --version
   - ansible-lint --version

ansible-role-{{cookiecutter.role_name}}/.travis.yml

@@ -13,7 +13,7 @@ before_install:
   - git clone https://github.com/lean-delivery/ansible-lint-rules.git ~/ansible-lint-rules
 
 install:
-  - pip install --upgrade ansible==2.5.* docker-py molecule==2.17 pyOpenSSL PyYAML pytest==3.7.4
+  - pip install --upgrade ansible==2.7.* docker-py molecule==2.20 pyOpenSSL PyYAML pytest
   - pip install git+https://github.com/ansible/ansible-lint.git
   - ansible --version
   - ansible-lint --version