Switched to Docker Hub automated builds

.travis.yml

@@ -1,15 +0,0 @@
-services:
-    - docker
-
-env:
-    global:
-        - COMMIT=${TRAVIS_COMMIT::8}
-        - REPO=trafex/alpine-nginx-php7
-
-script:
-  - docker --version
-  - export TAG=`if [ "$TRAVIS_BRANCH" == "master" ]; then echo "latest"; else echo $TRAVIS_BRANCH ; fi`
-  - docker login -u $DOCKER_USER -p $DOCKER_PASS
-  - docker build -t $REPO:$COMMIT .
-  - docker tag $REPO:$COMMIT $REPO:$TAG
-  - docker push $REPO