Minor bug fixes

Updates the library so that SPI is no longer hard coded. This also fixes some macro names that were causing conflicts across libraries.

Fix ESP8266 compile issues

Merge pull request #53 from jnslr/master

change byte to uint8_t to avoid naming conflict with ESP8266 toolchain

Remove Wire.begin(). Add data burst read method.

v2.0.9

Update library.properties

Adding get/set for temperature correction

It is good practice to not expose variables such as this to the user, and instead to have getters/setters.

Updating SPISettings To allow modification of modes

v2.0.7

updating SPISettings config

Fixing issue with multiple calls of Begin to get chipID

v2.0.6

bumping to v2.0.6, not calling begin multiple times to get chip ID

v2.0.5

Fix a name collision

Fix issue 30, corrects alt coefficient

v2.0.4

Lib ver roll

Add temp correction

v2.0.3

Lib ver roll

Add dewpoint calcs

v2.0.2

Lib ver roll