better ci

.travis.yml

@@ -5,15 +5,4 @@ services:
 
 script:
   - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
-  - cd hello-world-go
-  - docker build -t=tormachris/hello-world-go .
-  - docker push tormachris/hello-world-go
-  - cd ../isprime-go
-  - docker build -t=tormachris/isprime-go .
-  - docker push tormachris/isprime-go
-  - cd ../hello-world-python
-  - docker build -t=tormachris/hello-world-py .
-  - docker push tormachris/hello-world-py
-  - cd ../isprime-python
-  - docker build -t=tormachris/isprime-py .
-  - docker push tormachris/isprime-py
+  - for dir in $PWD/*/; do cd $dir; docker build -t=$DOCKER_USERNAME/${dir##*/} .; docker push $DOCKER_USERNAME/${dir##*/}; cd ..; done