update travis config

.travis.yml

@@ -1,28 +1,32 @@
 language: python
+sudo: false
+cache:
+  apt: true
+  directories:
+    - $HOME/.cache/pip
+
 python:
   - "2.7"
 
-sudo: false
-cache: pip
-
 addons:
   apt:
     packages:
       - expect-dev  # provides unbuffer utility
       - python-lxml  # because pip installation is slow
+      - python-simplejson
+      - python-serial
+      - python-yaml
 
 env:
   global:
-  - VERSION="8.0" TESTS="0" LINT_CHECK="0"
+  - VERSION="8.0" TESTS="0" LINT_CHECK="0" TRANSIFEX="0"
   - TRANSIFEX_USER='transbot@odoo-community.org'
   - secure: HgKcIRHgUR14+T9TRJvGAd2jn9cSChN87zrYPSZ2p63i/6+MU+WaK3lFf6T0NIjHQUvMMpZ1Cu+OFymvjbIEtvPeglaBVUA9ZED5vrW6ED2p24c09ADdQa3LeBoqLxholaYtbbaQrLNWEnZF0pY4Qk9ZQsHkj2LTpV+M+tOYwpM=
   matrix:
   - LINT_CHECK="1"
   - TRANSIFEX="1"
-  - TESTS=1 ODOO_REPO="odoo/odoo" LINT_CHECK="0"
-  - TESTS=1 ODOO_REPO="OCA/OCB" LINT_CHECK="0"
-
-
+  - TESTS="1" ODOO_REPO="odoo/odoo"
+  - TESTS="1" ODOO_REPO="OCA/OCB"
 
 virtualenv:
   system_site_packages: true
@@ -36,4 +40,4 @@ script:
   - travis_run_tests
 
 after_success:
-  coveralls
+  - travis_after_tests_success