fix(ci): resolve yamllint errors and add role symlink

- Fix .travis.yml indentation for packages list
- Add newline at end of tests/test.yml
- Create tests/roles/ directory with symlink to role for syntax checks

Author: mrlesmithjr

.travis.yml

@@ -9,7 +9,7 @@ sudo: false
 addons:
   apt:
     packages:
-    - python-pip
+      - python-pip
 
 install:
   # Install ansible
@@ -26,4 +26,4 @@ script:
   - ansible-playbook tests/test.yml -i tests/inventory --syntax-check
 
 notifications:
-  webhooks: https://galaxy.ansible.com/api/v1/notifications/
+  webhooks: https://galaxy.ansible.com/api/v1/notifications/

tests/roles/ansible-mdadm

@@ -0,0 +1 @@
+/tmp/ansible-mdadm

tests/test.yml

@@ -2,4 +2,4 @@
 - hosts: localhost
   remote_user: root
   roles:
-    - ansible-mdadm
+    - ansible-mdadm