Removed university proxy settings from Dockerfiles

src/data-hub/pareto-trust-microservice/Dockerfile

 FROM python:3
-LABEL maintainer="Alexander Lercher"
-
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
+LABEL maintainer="Manuel Herold"
 
 RUN apt-get update
 RUN pip install flask

src/data-hub/proactive-community-detection-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/data-hub/reputation-calculation-microservice/Dockerfile

 FROM python:3
-LABEL maintainer="Alexander Lercher"
-
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
+LABEL maintainer="Manuel Herold"
 
 RUN apt-get update
 RUN pip install flask

src/data-hub/role-stage-discovery-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000

src/data-hub/semantic-linking-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000

src/participation-hub/business-logic-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000

src/rest-gateway/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000

src/transaction-hub-in/network-metrics-retrieval-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/transaction-hub-in/trace-retrieval-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000

src/transaction-hub-out/data-access-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/transaction-hub-out/event-detection-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/transaction-hub-out/smart-matching-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/transaction-hub-out/tokenized-decision-making-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

src/transaction-hub-out/trust-sla-microservice/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 RUN pip install flask
 RUN pip install connexion[swagger-ui]

tools/welcome-page/Dockerfile

 FROM python:3
 LABEL maintainer="Alexander Lercher"
 
-ENV http_proxy http://proxy.uni-klu.ac.at:3128/
-ENV https_proxy http://proxy.uni-klu.ac.at:3128/
-
 RUN apt-get update
 
 EXPOSE 5000