Enhance "generate-stackbrew-library.sh" to only take into account changes to the Dockerfile or files from COPY in the Dockerfile for choosing the commit hash for a particular directory
Enhance "generate-stackbrew-library.sh" to only take into account changes to the Dockerfile or files from COPY in the Dockerfile for choosing the commit hash for a particular directory

mr-jojo8/elasticsearch-1,armhf-docker-library/elasticsearch,hao-opentown/elasticsearch,dataduke/elasticsearch-docker-library,RyansForks/elasticsearch,jhurt/elasticsearch,docker-library/elasticsearch,stefanofontanelli/elasticsearch,gerardorochin/elasticsearch,infosiftr/elasticsearch