Fixed and tested http option

APIs/dataTransferAPI.py

conf/dataManager.conf

src/sender/DataDispatcher.py

src/sender/DataManager.py

src/sender/dataFetchers/getFromFile.py

src/sender/dataFetchers/getFromHttp.py

src/sender/dataFetchers/getFromZmq.py

src/sender/eventDetectors/HttpDetector.py

src/sender/eventDetectors/InotifyxDetector.py