updated the robot_manager to fix the bugs, meet the new ID requirements. Fix the problem so that one client can have multiple repeater newtowrks.
add the error check for the maximum number of repeaters/dongles in a repeaterNetwork. This is important because the 'robotIP' in the dongle config file is 134.20.1.(1~maxNumber) and the 'controllerIP' in the dongle config file is 134.20.1.(maxNumber+1 ~ maxNumber+maxNumber). This is to make sure no IP conflicts will happen in the dongle config file.