'deprecated' errors at compile

[tangles-0]

sketch\ServoController.cpp: In member function 'void ServoController::steer_forward(int, int, float)':

sketch\ServoController.cpp:69:84: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(output, output, throtpos, steerpos, "(Forward) Both servos: ", output, false);  

                                                                                    ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_backward(int, int, float)':

sketch\ServoController.cpp:75:86: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(output, output, throtpos, steerpos, "(Reversing) Both servos: ", output, false);

                                                                                      ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_idle(int, int, bool)':

sketch\ServoController.cpp:80:104: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

     move(outputcentre, outputcentre, throtpos, steerpos, "(Neutral) Both servos: ", outputcentre, false);  

                                                                                                        ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_forward_left(int, int, float, float)':

sketch\ServoController.cpp:93:113: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(regoutput, newoutput, throtpos, steerpos, "(Forward) Left channel servo: ", newoutput, steer_forward_swap);

                                                                                                                 ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_forward_right(int, int, float, float)':

sketch\ServoController.cpp:103:114: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(newoutput, regoutput, throtpos, steerpos, "(Forward) Right channel servo: ", newoutput, steer_forward_swap);

                                                                                                                  ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_backward_left(int, int, float, float)':

sketch\ServoController.cpp:113:112: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(regoutput, newoutput, throtpos, steerpos, "(Reversing) Left channel servo: ", newoutput, steer_back_swap);

                                                                                                                ^

sketch\ServoController.cpp: In member function 'void ServoController::steer_backward_right(int, int, float, float)':

sketch\ServoController.cpp:123:113: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

   move(newoutput, regoutput, throtpos, steerpos, "(Reversing) Right channel servo: ", newoutput, steer_back_swap);

                                                                                                                 ^