Flush serial when printing debug info

Author: tyeth

src/Wippersnapper.h

@@ -48,11 +48,11 @@
 // Define actual debug output functions when necessary.
 #ifdef WS_DEBUG
 #define WS_DEBUG_PRINT(...)                                                    \
-  { WS_PRINTER.print(__VA_ARGS__); } ///< Prints debug output.
+  { WS_PRINTER.print(__VA_ARGS__); WS_PRINTER.flush(); } ///< Prints debug output.
 #define WS_DEBUG_PRINTLN(...)                                                  \
-  { WS_PRINTER.println(__VA_ARGS__); } ///< Prints line from debug output.
+  { WS_PRINTER.println(__VA_ARGS__); WS_PRINTER.flush(); } ///< Prints line from debug output.
 #define WS_DEBUG_PRINTHEX(...)                                                 \
-  { WS_PRINTER.print(__VA_ARGS__, HEX); } ///< Prints debug output.
+  { WS_PRINTER.print(__VA_ARGS__, HEX); WS_PRINTER.flush(); } ///< Prints debug output.
 #else
 #define WS_DEBUG_PRINT(...)                                                    \
   {} ///< Prints debug output