travis.yml: Install mraa to /usr

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

.travis.yml

@@ -21,11 +21,8 @@ before_script:
   - if [ "${NODE5}" ]; then nvm install 5; export CC=gcc-4.8; export CXX=g++-4.8; export NODE_ROOT_DIR="/home/travis/.nvm/versions/node/`nvm version`"; fi
   - if [ "${NODE012}" ]; then nvm install 0.12; export NODE_ROOT_DIR="/home/travis/.nvm/versions/node/`nvm version`"; fi
 script:
-  - git clone --branch=firmata https://github.com/intel-iot-devkit/mraa.git
-  - cd mraa && mkdir build && cd build && cmake -DBUILDSWIGJAVA=$BUILDJAVA -DBUILDSWIGNODE=OFF -DBUILDSWIGPYTHON=OFF -DFIRMATA=ON -DENABLEEXAMPLES=OFF -DCMAKE_INSTALL_PREFIX:PATH=. .. && make && make install
-  - export PKG_CONFIG_PATH=$PWD/lib/pkgconfig:$PWD/lib/x86_64-linux-gnu/pkgconfig
-  - export CPLUS_INCLUDE_PATH=$PWD/include
-  - export LIBRARY_PATH=$PWD/lib:$PWD/lib/x86_64-linux-gnu
+  - git clone https://github.com/intel-iot-devkit/mraa.git
+  - cd mraa && mkdir build && cd build && cmake -DBUILDSWIGJAVA=$BUILDJAVA -DBUILDSWIGNODE=OFF -DBUILDSWIGPYTHON=OFF -DFIRMATA=ON -DENABLEEXAMPLES=OFF -DCMAKE_INSTALL_PREFIX:PATH=/usr .. && make && sudo make install
   - cd ../.. && mkdir build && cd build && cmake -DNODE_ROOT_DIR:PATH="${NODE_ROOT_DIR}" -DBUILDSWIGJAVA=$BUILDJAVA -DBUILDEXAMPLES=ON -DBUILDJAVAEXAMPLES=$BUILDJAVA .. && make
 addons:
   apt: