addng Serial FreeRTOS lib
updating Serial lib
removing old Serial
adding AsyncSerial
implementing private function of the class
implementing AsyncSerial class
adding serial pin assignment (not finished). Plus made change on HSE_VALUE from 25000000 to 8000000 to represent the freq of the crystal on the stm32f4discovery board.
removing SerialPinAssignment form the StdPeriphLib because it's device dependent.
cleaning up the initialisation of the UARTs
moving serial types to common location
some constant naming update + beginning of error handling
removing old AsyncSerial class, creating singleton AsyncSerialPort1 and modifying SerialType header file
correcting build errors
finishing the AsyncSerialPort1 object (error interrupt not implemented yet and not tested)
Adding documentation
deleting doc
adding the number of character sent int the put string method.
adding documentation.
adding the mutex.
adding mutex