Change to LCD status indicators

The I2C LCD status indicators now indicate when the hotends or bed are
turned on at all (rather than just when they are in their heating phase)

Marlin/ultralcd_implementation_hitachi_HD44780.h

@@ -298,12 +298,12 @@ static void lcd_implementation_init()
   #endif
   
 #elif defined(LCD_I2C_TYPE_MCP23017)
-  	lcd.setMCPType(LTI_TYPE_MCP23017);
+    lcd.setMCPType(LTI_TYPE_MCP23017);
     lcd.begin(LCD_WIDTH, LCD_HEIGHT);
     lcd.setBacklight(0); //set all the LEDs off to begin with
     
 #elif defined(LCD_I2C_TYPE_MCP23008)
-  	lcd.setMCPType(LTI_TYPE_MCP23008);
+    lcd.setMCPType(LTI_TYPE_MCP23008);
     lcd.begin(LCD_WIDTH, LCD_HEIGHT);
     
 #else
@@ -497,9 +497,9 @@ static void lcd_implementation_drawmenu_generic(uint8_t row, const char* pstr, c
     char c;
     //Use all characters in narrow LCDs
   #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1;
+      uint8_t n = LCD_WIDTH - 1 - 1;
     #else
-    	uint8_t n = LCD_WIDTH - 1 - 2;
+      uint8_t n = LCD_WIDTH - 1 - 2;
   #endif
     lcd.setCursor(0, row);
     lcd.print(pre_char);
@@ -519,9 +519,9 @@ static void lcd_implementation_drawmenu_setting_edit_generic(uint8_t row, const
     char c;
     //Use all characters in narrow LCDs
   #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen(data);
+      uint8_t n = LCD_WIDTH - 1 - 1 - strlen(data);
     #else
-    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen(data);
+      uint8_t n = LCD_WIDTH - 1 - 2 - strlen(data);
   #endif
     lcd.setCursor(0, row);
     lcd.print(pre_char);
@@ -541,9 +541,9 @@ static void lcd_implementation_drawmenu_setting_edit_generic_P(uint8_t row, cons
     char c;
     //Use all characters in narrow LCDs
   #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen_P(data);
+      uint8_t n = LCD_WIDTH - 1 - 1 - strlen_P(data);
     #else
-    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen_P(data);
+      uint8_t n = LCD_WIDTH - 1 - 2 - strlen_P(data);
   #endif
     lcd.setCursor(0, row);
     lcd.print(pre_char);
@@ -600,9 +600,9 @@ void lcd_implementation_drawedit(const char* pstr, char* value)
     lcd_printPGM(pstr);
     lcd.print(':');
    #if LCD_WIDTH < 20
-    	lcd.setCursor(LCD_WIDTH - strlen(value), 1);
+      lcd.setCursor(LCD_WIDTH - strlen(value), 1);
     #else
-    	lcd.setCursor(LCD_WIDTH -1 - strlen(value), 1);
+      lcd.setCursor(LCD_WIDTH -1 - strlen(value), 1);
    #endif
     lcd.print(value);
 }
@@ -720,11 +720,11 @@ static void lcd_implementation_update_indicators()
     //set the LEDS - referred to as backlights by the LiquidTWI2 library 
     static uint8_t ledsprev = 0;
     uint8_t leds = 0;
-    if (isHeatingBed()) leds |= LED_A;
+    if (target_temperature_bed > 0) leds |= LED_A;
-    if (isHeatingHotend(0)) leds |= LED_B;
+    if (target_temperature[0] > 0) leds |= LED_B;
     if (fanSpeed) leds |= LED_C;
     #if EXTRUDERS > 1  
-      if (isHeatingHotend(1)) leds |= LED_C;
+      if (target_temperature[1] > 0) leds |= LED_C;
     #endif
     if (leds != ledsprev) {
       lcd.setBacklight(leds);