Updated build config for macOS

Author: Simon Hofmann

.travis.yml

@@ -102,12 +102,10 @@ script:
   - if [[ $BUILD_TASK != "prebuild" ]]; then
     cd ./ci/$BUILD_TASK;
     npm run $BUILD_TASK $TAG;
-    cd -;
     fi
   - if [[ $BUILD_TASK == "prebuild" && $TRAVIS_TAG != "" ]]; then
     cd ./ci/$BUILD_TASK;
     npm run $BUILD_TASK $TAG;
-    cd -;
     fi
 
 after_success:

ci/test/test.sh

@@ -6,8 +6,10 @@ then
     docker run $image
 elif [[ "$TRAVIS_OS_NAME" == "osx" ]];
 then
-    cd ../../test &&\
-    npm install --unsafe-perm &&\
+    cd ../../ &&\
+    npm install &&\
+    cd test &&\
+    npm install &&\
     npm test &&\
-    npm run test-externalMemTracking
+    npm run test-externalMemTrackingg
 fi