Add prefix to all files related to CI rather than project

Author: native-api

.travis.yml

@@ -5,6 +5,7 @@ env:
         - TEST_DEPENDS="numpy==1.11.1"
         # params to bdist_wheel. used to set osx build target.
         - BDIST_PARAMS=""
+        - CONFIG_PATH="travis_config.sh"
         - USE_CCACHE=1
         - PLAT=x86_64
         - UNICODE_WIDTH=32
@@ -663,7 +664,7 @@ before_install: |
     if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export ARCH_FLAGS=" "; fi
     source multibuild/travis_steps.sh
     # This sets -x
-    source multibuild_customize.sh
+    source travis_multibuild_customize.sh
     echo $ENABLE_CONTRIB > contrib.enabled
     echo $ENABLE_HEADLESS > headless.enabled