Merge pull request #213 from radarhere/xcode64

Removed Xcode 6.4 builds from Travis CI

> Running builds with Xcode 6.4 in Travis CI is deprecated and will be removed in January 2019. If Xcode 6.4 is critical to your builds, please contact our support team at support@travis-ci.com to discuss options.

.travis.yml

@@ -32,11 +32,6 @@ matrix:
         - TEST_BUILDS=1
         - USE_CCACHE=1
     # OSX builds
-    - os: osx
-      osx_image: xcode6.4
-      env:
-        - PYTHON_VERSION=2.7
-        - VENV=venv
     - os: osx
       env:
         - PYTHON_VERSION=2.7
@@ -194,10 +189,6 @@ matrix:
       osx_image: xcode7.3
       env:
         - PYTHON_VERSION=3.5
-    - os: osx
-      osx_image: xcode6.4
-      env:
-        - PYTHON_VERSION=3.5
 
 script:
   - export ENV_VARS_PATH="tests/env_vars.sh"