Merge pull request #2 from ringerc/master

Arduino 1.0 update, access to integer values, inlines
Added fahrenheit to getTemperature
Change fix for negative temperature to work proper

Previous fis doesn't look quite right for me because the unary minus will be performed before the &.
Merge pull request #4 from jkuchta/master

Added fahrenheit to getTemperature
Merge pull request #5 from darco/master

Change fix for negative temperature to work proper
Merge pull request #1 from nethoncho/master

Update