Merge pull request #225 from bsipocz/setuptools_limiting_version

Limiting versions of setuptools and sphinx due to warnings that need 'fixin

.travis.yml

@@ -15,15 +15,33 @@ env:
     - PYTHON_VERSION=3.4
     - PYTHON_VERSION=3.5
   global:
-    - SETUPTOOLS_VERSION=stable
-    - CONDA_DEPENDENCIES="pytest sphinx cython numpy"
+    - SETUPTOOLS_VERSION='<20'
+    - SPHINX_VERSION='<1.4'
+    - CONDA_DEPENDENCIES="setuptools pytest sphinx cython numpy"
     - PIP_DEPENDENCIES="coveralls pytest-cov"
 
 matrix:
     include:
         - os: linux
-          env: PYTHON_VERSION=2.7 SETUPTOOLS_VERSION=dev
-               CONDA_DEPENDENCIES="pytest sphinx cython numpy mercurial mock"
+          env: PYTHON_VERSION=2.7 SPHINX_VERSION=1.4
+        - os: linux
+          env: PYTHON_VERSION=2.7 SETUPTOOLS_VERSION=20
+        - os: linux
+          env: PYTHON_VERSION=2.7 SETUPTOOLS_VERSION=dev DEBUG=True
+               CONDA_DEPENDENCIES='pytest sphinx cython numpy'
+
+    allow_failures:
+        # Remove this once https://github.com/astropy/astropy-helpers/issues/224
+        # is solved and remove the version limitation
+        - os: linux
+          env: PYTHON_VERSION=2.7 SPHINX_VERSION=1.4
+        # Remove these once https://github.com/astropy/astropy-helpers/issues/222
+        # is solved, and set back the default version to 'stable'
+        - os: linux
+          env: PYTHON_VERSION=2.7 SETUPTOOLS_VERSION=20
+        - os: linux
+          env: PYTHON_VERSION=2.7 SETUPTOOLS_VERSION=dev DEBUG=True
+               CONDA_DEPENDENCIES='pytest sphinx cython numpy'
 
 before_install:
 
@@ -39,7 +57,7 @@ install:
     # pip tries to remove the previous version of setuptools before the
     # installation is complete, which causes issues. Instead, we just install
     # setuptools manually.
-    - if [[ $SETUPTOOLS_VERSION == dev ]]; then hg clone https://bitbucket.org/pypa/setuptools; cd setuptools; python setup.py install; cd ..; fi
+    - if [[ $SETUPTOOLS_VERSION == dev ]]; then git clone http://github.com/pypa/setuptools.git; cd setuptools; python setup.py install; cd ..; fi
 
 before_script:
     # Some of the tests use git commands that require a user to be configured