Update BMP085 library.

And additional pressure sensor problems repoted by @MagKas.
http://forum.mysensors.org/topic/631/pressure-sensor-arduino-low-memory

libraries/Adafruit_BMP085/Adafruit_BMP085.h

@@ -1,8 +1,9 @@
 /*************************************************** 
-  This is a library for the BMP085 Barometric Pressure & Temp Sensor
+  This is a library for the Adafruit BMP085/BMP180 Barometric Pressure + Temp sensor
 
-  Designed specifically to work with the Adafruit BMP085 Breakout 
-  ----> https://www.adafruit.com/products/391
+  Designed specifically to work with the Adafruit BMP085 or BMP180 Breakout 
+  ----> http://www.adafruit.com/products/391
+  ----> http://www.adafruit.com/products/1603
 
   These displays use I2C to communicate, 2 pins are required to  
   interface
@@ -14,6 +15,9 @@
   BSD license, all text above must be included in any redistribution
  ****************************************************/
 
+#ifndef ADAFRUIT_BMP085_H
+#define ADAFRUIT_BMP085_H
+
 #if (ARDUINO >= 100)
  #include "Arduino.h"
 #else
@@ -54,11 +58,13 @@ class Adafruit_BMP085 {
   boolean begin(uint8_t mode = BMP085_ULTRAHIGHRES);  // by default go highres
   float readTemperature(void);
   int32_t readPressure(void);
+  int32_t readSealevelPressure(float altitude_meters = 0);
   float readAltitude(float sealevelPressure = 101325); // std atmosphere
   uint16_t readRawTemperature(void);
   uint32_t readRawPressure(void);
   
  private:
+  int32_t computeB5(int32_t UT);
   uint8_t read8(uint8_t addr);
   uint16_t read16(uint8_t addr);
   void write8(uint8_t addr, uint8_t data);
@@ -69,3 +75,5 @@ class Adafruit_BMP085 {
   uint16_t ac4, ac5, ac6;
 };
 
+
+#endif //  ADAFRUIT_BMP085_H