message: Temporarily don't download UE in the background.
diff: @@ -346,7 +346,7 @@ jobs:
  - pip3 install --upgrade pip
  - pip3 install awscli
  - pip3 install httpie
  - - "./travis/travis-get-ue-500p1.sh &"
  + - "./travis/travis-get-ue-500p1.sh"
  before_script:
  - export CESIUM_UNREAL_VERSION=$(git describe)
  - export BUILD_CESIUM_UNREAL_PACKAGE_NAME=CesiumForUnreal-500p1-windows-${CESIUM_UNREAL_VERSION}
  @@ -359,7 +359,7 @@ jobs:
  - rm -rf extern
  - export CLONEDIR=$PWD
  - "sed -i 's/\"EngineVersion\": \"4.26.0\"/\"EngineVersion\": \"5.0.0\"/g' CesiumForUnreal.uplugin"
  - - wait
  + #- wait
  - cd /c/Epic/UE_5.0/Engine/Build/BatchFiles
  - ./RunUAT.bat BuildPlugin -Plugin="$CLONEDIR/CesiumForUnreal.uplugin" -Package="$CLONEDIR/../packages/CesiumForUnreal" -CreateSubFolder -TargetPlatforms=Win64
  - cd "$CLONEDIR/../packages"
  