update travis

Author: AtsushiSakai

.travis.yml

@@ -2,11 +2,23 @@ language: python
 python:
   - 3.6
 
+before_install:
+    - wget http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh
+    - chmod +x miniconda.sh
+    - "./miniconda.sh -b"
+    - export PATH=/home/travis/miniconda2/bin:$PATH
+    - conda update --yes conda
+    - sudo rm -rf /dev/shm
+    - sudo ln -s /run/shm /dev/shm
+
 install:
   - "pip install scipy"
   - "pip install numpy"
   - "pip install matplotlib"
   - "pip install pandas"
+  - "pip install cvxpy"
+  - conda install -y -c cvxgrp cvxpy
+  - conda install -y -c anaconda cvxopt
 
 script:
   - python --version