Merge branch 'master' of https://github.com/ros-drivers/advanced_navigation_driver into ros-conventions

Conflicts:
	src/an_driver.cpp

Author: RonaldEnsing

Advanced Navigation ROS Driver Notes.txt

@@ -53,7 +53,7 @@ To use this example code, your Advanced Navigation device should be already conf
 3. In the Terminal window type: "dmesg | grep tty [enter]" to confirm the name of the com port (should be something like "ttyUSB0").
 4. Type: "roscore[enter]" to start ROS Master.
 5. Open a new Terminal window and type: "source ~/ros/devel/setup.bash[enter]".
-6. Using the name of your specific com port, type: "rosrun advanced_navigation_driver advanced_navigation_driver /dev/ttyUSB0 115200[enter]". 
+6. If your com port is named "ttyUSB0" and your baud rate is set to 115200 bps, type: "rosrun advanced_navigation_driver advanced_navigation_driver [enter]". If your com port or baud rate are different then type: "rosrun advanced_navigation_driver advanced_navigation_driver /dev/your_com_port_name your_baud_rate [enter]". 
 7. Open a new Terminal window and type: "rosnode list[enter]" to list the available nodes. You should see these listed:
    /an_device_node
    /rosout

src/an_driver.cpp

@@ -334,3 +334,4 @@ int main(int argc, char *argv[]) {
 	}
 
 }
+

src/rs232/rs232.c

@@ -101,8 +101,7 @@ int OpenComport(char *comport, int baudrate)
                    break;
   }
 
-  // Cport = open(comport, O_RDWR | O_NOCTTY | O_NDELAY);
-  Cport = open(comport, O_RDWR | O_NOCTTY);
+  Cport = open(comport, O_RDWR | O_NOCTTY | O_NDELAY);
   if(Cport==-1)
   {
     perror("unable to open comport ");
@@ -123,8 +122,7 @@ int OpenComport(char *comport, int baudrate)
   new_port_settings.c_oflag = 0;
   new_port_settings.c_lflag = 0;
   new_port_settings.c_cc[VMIN] = 0;      /* block untill n bytes are received */
-  // new_port_settings.c_cc[VTIME] = 0;     /* block untill a timer expires (n * 100 mSec.) */
-  new_port_settings.c_cc[VTIME] = 1;     /* block untill a timer expires (n * 100 mSec.) */
+  new_port_settings.c_cc[VTIME] = 0;     /* block untill a timer expires (n * 100 mSec.) */
   error = tcsetattr(Cport, TCSANOW, &new_port_settings);
   if(error==-1)
   {