severeal improvements

Einrichtung_RPI/files/mqtt_node_client.py

Einrichtung_RPI/files/mqtt_server_client.py

Einrichtung_RPI/scripts/mqtt_node_client_cleanup.sh

Einrichtung_RPI/scripts/mqtt_server_client_cleanup.sh

Router/include/user_config.h

doc/5_umsetzung.tex

doc/Bachelorarbeit.pdf

doc/anhang.tex

doc/graphics/diagrams/architecture/architecture_abstract.png

...raphics/diagrams/architecture/architecture_components.png

doc/graphics/diagrams/architecture/architecture_node.png

doc/graphics/diagrams/architecture/architecture_router.png

doc/graphics/diagrams/architecture/architecture_server.png

...phics/diagrams/architecture/architecture_technologies.png

presentation/Präsentation_Kolloquium.pdf

presentation/Präsentation_Kolloquium.pptx

presentation/Präsentation_Kolloquium_Handout.docx

presentation/Präsentation_Kolloquium_Handout.pdf

presentation/~$Präsentation_Kolloquium.pptx