update travis

Author: Guillaume Lemaitre

.travis.yml

@@ -29,13 +29,13 @@ env:
   matrix:
     # This environment tests the using anaconda
     - DISTRIB="conda" PYTHON_VERSION="2.7" COVERAGE="true"
-      NUMPY_VERSION="1.10.4" SCIPY_VERSION="0.17.1" SKLEARN_VERSION="0.18.1"
+      NUMPY_VERSION="1.11.2" SCIPY_VERSION="0.18.1" SKLEARN_VERSION="0.18.1"
     - DISTRIB="conda" PYTHON_VERSION="3.5" COVERAGE="true"
-      NUMPY_VERSION="1.10.4" SCIPY_VERSION="0.17.1" SKLEARN_VERSION="0.18.1"
+      NUMPY_VERSION="1.11.2" SCIPY_VERSION="0.18.1" SKLEARN_VERSION="0.18.1"
       # flake8 linting on diff wrt common ancestor with upstream/master
     - RUN_FLAKE8="true" SKIP_TESTS="true"
       DISTRIB="conda" PYTHON_VERSION="3.5"
-      NUMPY_VERSION="1.10.4" SCIPY_VERSION="0.17.0" SKLEARN_VERSION="0.18.1"
+      NUMPY_VERSION="1.11.2" SCIPY_VERSION="0.18.1" SKLEARN_VERSION="0.18.1"
 
 install: source build_tools/travis/install.sh
 script: bash build_tools/travis/test_script.sh