refactor and update util to use new log formatter setting (#37)

.gitignore

backend/WebUI/api_webui.go

backend/WebUI/model_flow_rule.go

backend/WebUI/model_qos_flow.go

backend/WebUI/model_subs_data.go

backend/WebUI/model_subs_list_ie.go

backend/WebUI/routers.go

backend/factory/config.go

backend/factory/factory.go

backend/logger/logger.go

backend/webui_context/context.go

backend/webui_service/webui_init.go

config/webuicfg.yaml

frontend/package.json

frontend/public/index.html

frontend/src/components/FormInputs/Radio.js

frontend/src/index.js

frontend/src/metadata/index.js

frontend/src/models/Subscriber.js

frontend/src/pages/Subscribers/SubscriberOverview.js