Update travis stages

Author: seignovert

.travis.yml

@@ -1,26 +1,37 @@
 sudo: false
 language: python
+cache: pip
+
 python:
 - '2.7'
 - '3.6'
-install: pip install tox-travis python-coveralls
-script: tox
-after_success:
-- coveralls
+
+stages:
+  - name: test
+  - name: deploy
+    if: tag IS present
+
 jobs:
   include:
-  - stage: deploy
-    if: tag IS present
-    script: echo 'Deploy to PyPi...'
-    python: 3.6
-    env: PBR_VERSION=$TRAVIS_TAG
-    deploy:
+    - stage: test
+      install:
+          - pip install tox-travis python-coveralls
+      script:
+          - tox
+      after_success:
+          - coveralls
+
+    - stage: deploy
+      script: echo 'Deploy to PyPi...'
+      python: 3.6
+      env: PBR_VERSION=$TRAVIS_TAG
+      deploy:
       provider: pypi
       user: seignovert
       password:
-        secure: oUrb08YxbcbbmwVhULsaaHITXLeheB/ML6i0QyQb1ds9bF/cVfGapzJQW3qDFsV+6y+Wg/dK53GQysm3MD86Uy9BxNh8EmE1CDjt8WFc91YdkasliQMpA4T2LFS/c9go2pUtMO/bLPgyQj0eOA3tuqAAN6O9aOS3c5Ewu3MUywEo60hjdC5ZrQaH3xiV+t3QExYOD4894Wc47a3FLKhlOCtNpU2cWU5f2n9ZuWT8o8L2zThFZfAUwVzloO7Wpu1o9f3c+2G1lGam05NaXULSaQXECI3x36RZ92HbuT/Gy+9GdzebFnJZ+y6rwfYkgjAX8XVh9AqpyfR9CxxyzzH2ieI+EOcYW8Yl4gK7akf9P6VqUO4kSXLSEATz//c1ZHNk5QyoKaOKSo0W+w556LMD/GB/DHoV6f9v8pNDVgJvM2jfNQ7xJssy9HAbL3cwgsKfLHV1+1X5gv2kJHMRsZ26ZeiSA2A2i/KLsgUk1HtZdDpDhkd4k6ZQmjnA2gDUJzvctO5OuArReePm5gjtopvgd4ux5OEDX0x2//AGOyoywZDlyUfy63AsF6NMOnB6T3G4c/9VBqW3RsBG5qOz2eiChgK+12HYb9okZMD1iSuUt71l5i83/SLjCv+r8OIpcxf8c7EJLBv8pcSMQcLXrw5RYnE5qfkayYFoMoHcxh+cIhU=
+          secure: 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
       skip_cleanup: true
       distributions: sdist bdist_wheel
       on:
-        tags: true
-        all_branches: true
+          tags: true
+          all_branches: true