Update windows path

Author: Hoverbear

.travis.yml

@@ -21,6 +21,7 @@ install:
   - if [[ $TRAVIS_RUST_VERSION == "stable" && $TRAVIS_OS_NAME == "linux" ]]; then rustup component add clippy; fi
   - if [[ $TRAVIS_OS_NAME == "windows" ]]; then choco install golang; fi
   - if [[ $TRAVIS_OS_NAME == "windows" ]]; then choco install cmake; fi
+  - if [[ $TRAVIS_OS_NAME == "windows" ]]; then export PATH="$PATH:/c/Go/bin/:/c/Program Files/CMake/bin"; fi
 
 
 before_script: