Add gettext and Qt5LinguistTools

.travis.yml

@@ -33,7 +33,7 @@ before_install:
       ls /usr/local/lib/gstreamer-1.0;
     fi
 before_script:
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker exec build cmake -Hstrawberry -Bbuild -DENABLE_STREAM_DEEZER=ON ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker exec build cmake -Hstrawberry -Bbuild -DENABLE_STREAM_DEEZER=ON -DENABLE_TRANSLATIONS=ON ; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then mkdir build; cd build; cmake .. -DUSE_BUNDLE=ON -DENABLE_STREAM_DEEZER=ON ; fi
 script:
 - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker exec build make -C build -j8 ; fi