don't run gpu labeled tests in CI - no GPUs available

.travis.yml

@@ -34,7 +34,7 @@ matrix:
         - cd build
         - cmake -DCREATE_BOX_PACKAGE=OFF -DGPU_BACKEND_CUDA=OFF -DGPU_BACKEND_OPENCL=ON -DMACPORTS=OFF -DQt5_DIR=/usr/local/opt/qt/lib/cmake/Qt5 -G Ninja ..
         - ninja
-        - ctest -LE cmd --output-on-failure
+        - ctest --label-exclude "cmd|gpu" --output-on-failure
     - name: CUDA 8 Linux
       dist: xenial
       services:

docker/ci.dockerfile

@@ -7,4 +7,4 @@ RUN echo ${CUDA_SHORT} > cuda.version
 WORKDIR build
 RUN cmake -DCMAKE_BUILD_TYPE=Release -DRTMP_NVENC=OFF -DCUDA_TARGET_ARCH="50" -G Ninja ..
 RUN ninja
-RUN ctest -LE cmd --output-on-failure
+RUN ctest --label-exclude "cmd|gpu" --output-on-failure