add travis deploy for pypi release publishing

.travis.yml

@@ -2,12 +2,9 @@ sudo: false
 language: python
 python:
 - '3.5'
-# command to install dependencies
-install: "pip install -U tox setuptools_scm"
-# # command to run tests
+install: pip install -U tox setuptools_scm
 env:
   matrix:
-  # note: please use "tox --listenvs" to populate the build matrix
   - TESTENV=py26-pytest26
   - TESTENV=py26-pytest27
   - TESTENV=py26-pytest28
@@ -27,15 +24,22 @@ env:
   - TESTENV=py35-pytest28-pexpect
   - TESTENV=flakes
   - TESTENV=readme
-
 script: tox --recreate -e $TESTENV
-
 notifications:
   irc:
     channels:
-      - "chat.freenode.net#pytest"
+    - chat.freenode.net#pytest
     on_success: change
     on_failure: change
     skip_join: true
   email:
   - pytest-commit@python.org
+deploy:
+  provider: pypi
+  user: ronny
+  password:
+    secure: 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
+  on:
+    tags: true
+    distributions: sdist bdist_wheel
+    repo: pytest-dev/pytest-xdist