Added Read folder function
implemented a message to send all files in data folder that are not .json or .txt file
string compare ignores upper/lower case
changed addChannel and instruction_delegator's deviceID to be String instead of Integer (this means queues and channels Hashtables as well)

server will now pass on the JSON objects straight to instruction_delegator instead of saving in a file (still saves in a file for now, but the file is no longer used)

server testing messages have been added in the main program