one more try to get m32 (rel #149)

.travis.yml

@@ -39,7 +39,7 @@ script:
    - make
    - cd .. && rm build -rf && mkdir -p build && cd build
    - echo "Debug build and unit tests (32 bit) 
-   - cmake -DCMAKE_C_FLAGS=-m32 -DCMAKE_BUILD_TYPE=Debug -DENABLE_UNIT_TESTS=ON -DENABLE_COVERAGE=ON ..  
+   - CFLAGS=-m32 CXXFLAGS=-m32 cmake -DCMAKE_BUILD_TYPE=Debug -DENABLE_UNIT_TESTS=ON -DENABLE_COVERAGE=ON ..  
    - make && make test
    - cd .. && rm build -rf && mkdir -p build && cd build
    - cmake -DGENERATE_DOCUMENTATION=ON ..