publish libraries to avoid users to have to download them one by one

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+/******************************************************************************
+SparkFunBME280.h
+BME280 Arduino and Teensy Driver
+Marshall Taylor @ SparkFun Electronics
+May 20, 2015
+https://github.com/sparkfun/BME280_Breakout
+
+Resources:
+Uses Wire.h for i2c operation
+Uses SPI.h for SPI operation
+
+Development environment specifics:
+Arduino IDE 1.6.4
+Teensy loader 1.23
+
+This code is released under the [MIT License](http://opensource.org/licenses/MIT).
+Please review the LICENSE.md file included with this example. If you have any questions 
+or concerns with licensing, please contact techsupport@sparkfun.com.
+Distributed as-is; no warranty is given.
+******************************************************************************/
+
+// Test derived class for base class SparkFunIMU
+#ifndef __BME280_H__
+#define __BME280_H__
+
+#include "stdint.h"
+
+#define I2C_MODE 0
+#define SPI_MODE 1
+
+//Register names:
+#define BME280_DIG_T1_LSB_REG			0x88
+#define BME280_DIG_T1_MSB_REG			0x89
+#define BME280_DIG_T2_LSB_REG			0x8A
+#define BME280_DIG_T2_MSB_REG			0x8B
+#define BME280_DIG_T3_LSB_REG			0x8C
+#define BME280_DIG_T3_MSB_REG			0x8D
+#define BME280_DIG_P1_LSB_REG			0x8E
+#define BME280_DIG_P1_MSB_REG			0x8F
+#define BME280_DIG_P2_LSB_REG			0x90
+#define BME280_DIG_P2_MSB_REG			0x91
+#define BME280_DIG_P3_LSB_REG			0x92
+#define BME280_DIG_P3_MSB_REG			0x93
+#define BME280_DIG_P4_LSB_REG			0x94
+#define BME280_DIG_P4_MSB_REG			0x95
+#define BME280_DIG_P5_LSB_REG			0x96
+#define BME280_DIG_P5_MSB_REG			0x97
+#define BME280_DIG_P6_LSB_REG			0x98
+#define BME280_DIG_P6_MSB_REG			0x99
+#define BME280_DIG_P7_LSB_REG			0x9A
+#define BME280_DIG_P7_MSB_REG			0x9B
+#define BME280_DIG_P8_LSB_REG			0x9C
+#define BME280_DIG_P8_MSB_REG			0x9D
+#define BME280_DIG_P9_LSB_REG			0x9E
+#define BME280_DIG_P9_MSB_REG			0x9F
+#define BME280_DIG_H1_REG				0xA1
+#define BME280_CHIP_ID_REG				0xD0 //Chip ID
+#define BME280_RST_REG					0xE0 //Softreset Reg
+#define BME280_DIG_H2_LSB_REG			0xE1
+#define BME280_DIG_H2_MSB_REG			0xE2
+#define BME280_DIG_H3_REG				0xE3
+#define BME280_DIG_H4_MSB_REG			0xE4
+#define BME280_DIG_H4_LSB_REG			0xE5
+#define BME280_DIG_H5_MSB_REG			0xE6
+#define BME280_DIG_H6_REG				0xE7
+#define BME280_CTRL_HUMIDITY_REG		0xF2 //Ctrl Humidity Reg
+#define BME280_STAT_REG					0xF3 //Status Reg
+#define BME280_CTRL_MEAS_REG			0xF4 //Ctrl Measure Reg
+#define BME280_CONFIG_REG				0xF5 //Configuration Reg
+#define BME280_PRESSURE_MSB_REG			0xF7 //Pressure MSB
+#define BME280_PRESSURE_LSB_REG			0xF8 //Pressure LSB
+#define BME280_PRESSURE_XLSB_REG		0xF9 //Pressure XLSB
+#define BME280_TEMPERATURE_MSB_REG		0xFA //Temperature MSB
+#define BME280_TEMPERATURE_LSB_REG		0xFB //Temperature LSB
+#define BME280_TEMPERATURE_XLSB_REG		0xFC //Temperature XLSB
+#define BME280_HUMIDITY_MSB_REG			0xFD //Humidity MSB
+#define BME280_HUMIDITY_LSB_REG			0xFE //Humidity LSB
+
+
+//Class SensorSettings.  This object is used to hold settings data.  The application
+//uses this classes' data directly.  The settings are adopted and sent to the sensor
+//at special times, such as .begin.  Some are used for doing math.
+//
+//This is a kind of bloated way to do this.  The trade-off is that the user doesn't
+//need to deal with #defines or enums with bizarre names.
+//
+//A power user would strip out SensorSettings entirely, and send specific read and
+//write command directly to the IC. (ST #defines below)
+//
+struct SensorSettings
+{
+  public:
+	
+  //Main Interface and mode settings
+    uint8_t commInterface;
+    uint8_t I2CAddress;
+    uint8_t chipSelectPin;
+	
+	uint8_t runMode;
+	uint8_t tStandby;
+	uint8_t filter;
+	uint8_t tempOverSample;
+	uint8_t pressOverSample;
+	uint8_t humidOverSample;
+
+};
+
+//Used to hold the calibration constants.  These are used
+//by the driver as measurements are being taking
+struct SensorCalibration
+{
+  public:
+	uint16_t dig_T1;
+	int16_t dig_T2;
+	int16_t dig_T3;
+	
+	uint16_t dig_P1;
+	int16_t dig_P2;
+	int16_t dig_P3;
+	int16_t dig_P4;
+	int16_t dig_P5;
+	int16_t dig_P6;
+	int16_t dig_P7;
+	int16_t dig_P8;
+	int16_t dig_P9;
+	
+	uint8_t dig_H1;
+	int16_t dig_H2;
+	uint8_t dig_H3;
+	int16_t dig_H4;
+	int16_t dig_H5;
+	uint8_t dig_H6;
+	
+};
+
+//This is the man operational class of the driver.
+
+class BME280
+{
+  public:
+    //settings
+    SensorSettings settings;
+	SensorCalibration calibration;
+	int32_t t_fine;
+	
+	//Constructor generates default SensorSettings.
+	//(over-ride after construction if desired)
+    BME280( void );
+    //~BME280() = default;
+	
+	//Call to apply SensorSettings.
+	//This also gets the SensorCalibration constants
+    uint8_t begin( void );
+
+	//Software reset routine
+	void reset( void );
+	
+    //Returns the values as floats.
+    float readFloatPressure( void );
+	float readFloatAltitudeMeters( void );
+	float readFloatAltitudeFeet( void );
+	
+	float readFloatHumidity( void );
+
+	//Temperature related methods
+    float readTempC( void );
+    float readTempF( void );
+
+    //The following utilities read and write
+
+	//ReadRegisterRegion takes a uint8 array address as input and reads
+	//a chunk of memory into that array.
+    void readRegisterRegion(uint8_t*, uint8_t, uint8_t );
+	//readRegister reads one register
+    uint8_t readRegister(uint8_t);
+    //Reads two regs, LSByte then MSByte order, and concatenates them
+	//Used for two-byte reads
+	int16_t readRegisterInt16( uint8_t offset );
+	//Writes a byte;
+    void writeRegister(uint8_t, uint8_t);
+    
+};
+
+
+
+#endif  // End of __BME280_H__ definition check