Fix migrated paths in Dockerfile & travis

Author: JakubVanek

.travis.yml

@@ -12,6 +12,6 @@ addons:
     packages:
     - qemu-user-static
 before_script:
- - docker build --build-arg DIST=$DIST --build-arg HW_PLATFORM=$HW_PLATFORM -t ev3dev-lang-java/installer-test:latest ./tests
+ - docker build --build-arg DIST=$DIST --build-arg HW_PLATFORM=$HW_PLATFORM -t ev3dev-lang-java/installer-test:latest -f tests/Dockerfile .
 script:
  - docker run --rm ev3dev-lang-java/installer-test

tests/Dockerfile

@@ -7,8 +7,8 @@ ARG HW_PLATFORM=ev3
 ENV dist=$DIST
 ENV hw=$HW_PLATFORM
 
-COPY installer.sh installer-jessie.sh test.sh /tmp/
-COPY qemu-arm-static /usr/bin/
+COPY installer.sh installer-jessie.sh tests/test.sh /tmp/
+COPY tests/qemu-arm-static /usr/bin/
 
 RUN mkdir -p /home/robot/java && \
     if [ "x$dist" = "xstretch" ]; then \