Merge pull request #965 from ychin/update-binary-release-10.9

Update binary release to target 10.9 (used to be 10.8)

Author: ychin

.travis.yml

@@ -22,7 +22,7 @@ addons:
     update: true
 
 env:
-  - MACOSX_DEPLOYMENT_TARGET=10.8
+  - MACOSX_DEPLOYMENT_TARGET=10.9
     VERSIONER_PERL_VERSION=5.18
     VERSIONER_PYTHON_VERSION=2.7
     vi_cv_path_python=/usr/bin/python