Bugfix: Using FileGpioConnectionDriver as non-root user
The system needs some time in order to set the file permissions in /sys/class/gpio.
Merge remote-tracking branch 'upstream/master'
Bugfix: Using FileGpioConnectionDriver as non-root user

"SetPinDirection": use full file path to GPIO pin value.
HD44780 - Added I2C device address parameter
Added support for PCF8574 I2C Expander

Also fixed issues on HD44780 connection and updated sample
Added support for Raspberry Pi Model B+
Merge pull request #17 from danm-de/master

Bugfix: Using FileGpioConnectionDriver as non-root user
Removed useless references
Updates nuspec and readme.md
Revert "Updates nuspec and readme.md"

This reverts commit df00e9a88e5a40c7b36caef277074570a567aa2d.
Refactored Support for Analog Inputs

Added AnalogValue type, created VariableResistiveDividerConnection and
Tmp36Connection
Renamed AnalogValue properties
Try adding support for InOut pins and DHT sensor
Added support for I2C BMP085 barometer
Fixed issue with Model B+ and I2C
Fixed analog/digital scale issues
Load BMP085 temperature and pressure at once
Fixed division by zero issue with resistive divider
- fixed compile error in file SpiTransferBufferSpecs.cs (missing explicit cast at line 227)
- FileGpioConnection: replaced Raspberry specific platform check against a generic Unix check (this make it compatible with other /sys/class/gpio compatible platforms, eg. Banana Pi)
- Added Default driver fallback to FileGpioConnection on non-Raspberry Pi systems
- Added support for Grove Chainable RGB Led modules
Merge pull request #19 from genielabs/master

Added Banana Pi compatibility and support for Grove Chainable RGB Led