Move the Mono path fix to the install script.

.travis.yml

@@ -15,7 +15,6 @@ addons:
     - g++-4.8
 
 install:
-  - export PATH=$PATH:/Library/Frameworks/Mono.framework/Versions/Current/bin
   - build/InstallMono.sh
   - build/InstallNugets.sh  
   - if [ "$TRAVIS_OS_NAME" = "linux" ] && [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi

build/InstallMono.sh

@@ -2,6 +2,7 @@ OS=$(uname -s)
 if [ "$OS" == "Darwin" ]; then
 	wget -O mono.pkg https://download.mono-project.com/archive/4.6.2/macos-10-universal/MonoFramework-MDK-4.6.2.16.macos10.xamarin.universal.pkg
 	sudo installer -pkg mono.pkg -target /
+	export PATH=$PATH:/Library/Frameworks/Mono.framework/Versions/Current/bin
 elif [ "$OS" == "Linux" ]; then
 	sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 	echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list