Merge remote-tracking branch 'arduino/master' into ide-1.5.x

examples/HelloWorld/HelloWorld.ino

@@ -17,6 +17,8 @@
  * LCD D6 pin to digital pin 3
  * LCD D7 pin to digital pin 2
  * LCD R/W pin to ground
+ * LCD VSS pin to ground
+ * LCD VCC pin to 5V
  * 10K resistor:
  * ends to +5V and ground
  * wiper to LCD VO pin (pin 3)

src/LiquidCrystal.cpp

@@ -96,7 +96,7 @@ void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
 
   // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
   // according to datasheet, we need at least 40ms after power rises above 2.7V
-  // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
+  // before sending commands. Arduino can turn on way before 4.5V so we'll wait 50
   delayMicroseconds(50000); 
   // Now we pull both RS and R/W low to begin commands
   digitalWrite(_rs_pin, LOW);