Merge pull request #2330 from spiritinlife/ide-1.5.x

Add #include "Print.h" in Server.h    Ide 1.5.x

hardware/arduino/avr/cores/arduino/Server.h

@@ -20,6 +20,8 @@
 #ifndef server_h
 #define server_h
 
+#include "Print.h"
+
 class Server : public Print {
 public:
   virtual void begin() =0;

hardware/arduino/sam/cores/arduino/Server.h

@@ -20,6 +20,8 @@
 #ifndef server_h
 #define server_h
 
+#include "Print.h"
+
 class Server : public Print {
 public:
   virtual void begin() =0;