#12 Addition of unit test for StringUtils and refactoring of the ConnectionPool to save a token in the creation of the connection, plus more unit tests to this class
#12 Refactoring of the monitor service to deal with exceptions and a new method to deal with the initialization of the monitor, refactoring of the MonitorInfo class to deal with connection token and monitor token
#12 Unit test for MonitorService, refactoring of MonitorService, refactoring of javascript functions and events to handle the new methods of monitorService, refactoring of the MonitorServlet to use the new methods of the MonitorService, addition of the MonitorInfoPoolService that will handle and maintain the monitorInfos