Fix travis config for examples

Author: alexcrichton

.travis.yml

@@ -98,7 +98,7 @@ matrix:
         - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
       script:
         - cargo build -p wasm-bindgen-cli
-        - ln -snf target/debug/wasm-bindgen $HOME/.cargo/wasm-bindgen
+        - ln -snf `pwd`/target/debug/wasm-bindgen $HOME/.cargo/bin/wasm-bindgen
         - |
           for dir in `ls examples | grep -v README | grep -v asm.js | grep -v raytrace | grep -v without-a-bundler`; do
             (cd examples/$dir &&