Merge branch 'master' of https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code

Adafruit_CharLCD.py - 200 line code merge from LiquidCrystal. Syntax is clean, most methods have been tested.
Adafruit_CharLCD_IPclock_example.py - one line change from tutorial on 16x2

Author: mikeysklar

Adafruit_MCP4725/Adafruit_MCP4725.py

@@ -30,6 +30,6 @@ def setVoltage(self, voltage, persist=False):
     # Value needs to be left-shifted four bytes for the MCP4725
     bytes = [(voltage >> 4) & 0xFF, (voltage << 4) & 0xFF]
     if (persist):
-      self.i2c.writeList(self.__REG_WRITEDACEEPROM, self.i2c.reverseByteOrder(voltage))
+      self.i2c.writeList(self.__REG_WRITEDACEEPROM, bytes)
     else:
       self.i2c.writeList(self.__REG_WRITEDAC, bytes)