[skip appveyor] Initial travis.yml (only 64 bit builds supported):

travis.yml

+language: python
+
+python:
+  - "2.7"
+  - "3.5"
+
+before_install:
+  - git clone -q --branch=master https://github.com/Itseez/opencv.git "%APPVEYOR_BUILD_FOLDER%\opencv
+  - python find_version.py > tmp 
+  - opencv_version=$(cat tmp)
+  - rm tmp
+  - echo $opencv_version
+
+install: 
+  - python -m pip install --upgrade pip
+  - pip install -r requirements.txt
+  - cd ../opencv
+  - mkdir build
+  - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then cmake -H"." -B"build" -DBUILD_opencv_python3=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DPYTHON2_EXECUTABLE=$VIRTUAL_ENV/python27 -DPYTHON2_LIBRARY=$VIRTUAL_ENV/lib/python27.lib -DPYTHON2_INCLUDE_DIR=$VIRTUAL_ENV/include -Wno-dev; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then cmake -H"." -B"build" -DBUILD_opencv_python2=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DPYTHON3_EXECUTABLE=$VIRTUAL_ENV/python35 -DPYTHON3_LIBRARY=$VIRTUAL_ENV/lib/python35.lib -DPYTHON3_INCLUDE_DIR=$VIRTUAL_ENV/include -Wno-dev; fi
+  - cd build 
+  - cmake --build . --config Release
+  - cd ../..
+  - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then cp opencv\build\lib\RELEASE\*.pyd opencv-python/cv2; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then cp opencv\build\lib\python3\Release\*.pyd opencv-python/cv2; fi
+  - python setup.py bdist_wheel --opencv-version "$opencv_version-$TRAVIS_BUILD_NUMBER"
+
+before_script:
+  - pip install --no-index --find-links=opencv-python\dist\ opencv-python
+
+script:
+  - cd tests
+  - python -m unittest test
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