Attempting to simplify travis config

Author: perimosocordiae

.travis.yml

@@ -1,23 +1,11 @@
 language: python
 sudo: false
+cache: pip
 python:
   - "2.7"
   - "3.4"
-install:
-  - if [[ "$TRAVIS_PYTHON_VERSION" == 2.* ]]; then
-      wget http://repo.continuum.io/miniconda/Miniconda-3.4.2-Linux-x86_64.sh -O miniconda.sh;
-    else
-      wget http://repo.continuum.io/miniconda/Miniconda3-3.4.2-Linux-x86_64.sh -O miniconda.sh;
-    fi
-  - bash miniconda.sh -b -p $HOME/miniconda
-  - export PATH="$HOME/miniconda/bin:$PATH"
-  - hash -r
-  - conda config --set always_yes yes --set changeps1 no
-  - conda update -q conda
-  # Useful for debugging any issues with conda
-  - conda info -a
-
-  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION scikit-learn
-  - source activate test-environment
-  - python setup.py install
+before_install:
+  - pip install --upgrade pip
+  - pip install wheel
+  - pip install numpy scipy scikit-learn
 script: python setup.py test