Turn off osx Travis testing until tests are fixed for migration of xcode from 6.1 to 7.3

.travis.yml

@@ -151,6 +151,8 @@ matrix:
       env: SWIGLANG=python SWIG_CC=gcc-6 SWIG_CXX=g++-6 CPP14=1
       sudo: required
       dist: trusty
+  allow_failures:
+    # Turn off osx testing to fix numerous problems due to default xcode change from 6.1 to 7.3
     - os: osx
       env: SWIGLANG= SWIG_CC=gcc-4.2 SWIG_CXX=g++-4.2
     - compiler: clang
@@ -162,6 +164,9 @@ matrix:
     - compiler: clang
       os: osx
       env: SWIGLANG=go
+    - compiler: clang
+      os: osx
+      env: SWIGLANG=guile
     - compiler: clang
       os: osx
       env: SWIGLANG=java
@@ -187,7 +192,6 @@ matrix:
       os: osx
       env: SWIGLANG=tcl
 
-  allow_failures:
     # Lots of failing tests currently
     - compiler: gcc
       os: linux
@@ -196,10 +200,6 @@ matrix:
     - compiler: gcc
       os: linux
       env: SWIGLANG=python SWIG_FEATURES=-O
-    # brew install guile fails on Travis as OSX 10.9 is too old now, default osx_image needs changing
-    - compiler: clang
-      os: osx
-      env: SWIGLANG=guile
 before_install:
   - date -u
   - uname -a