specify branch and dependency, skip upload docs

.travis.yml

@@ -7,7 +7,7 @@ before_install:
     - sudo apt-get install -y libatlas-dev liblapack-dev libblas-dev
 before_script:
     - pip uninstall -y dulwich
-    - pip install -e git+https://github.com/jelmer/dulwich.git
+    - pip install -e git+https://github.com/mikofski/dulwich.git@versioneer#egg=dulwich
 script:
     - pytest
     - python setup.py bdist_wheel
@@ -24,5 +24,6 @@ deploy:
     user: bwanamarko
     password: $PYPI_PASSWORD
     distributions: "sdist bdist_wheel" # Your distributions here
+    skip_upload_docs: true
     on:
       tags: true