Update README.md

Changed to include information about this fork of the pi4j project.
Merge branch 'Pi4JUpstream/develop'
Formalized from a couple of examples found on several help topics.   - solution simplified based on solution from pskopek on http://www.raspberrypi.org
IDE auto-updated all copyright dates to include 2014
New implementation for the SRF02 I2C Ultrasonic sensor.   Work in progress - still needs cleanup.
Added intializer that accepts a specific device address
Merge commit '849c49660dc27b998511c730202fb9fa499c65ce' into develop

Conflicts:
	README.md
	pi4j-core/src/main/java/com/pi4j/servo/Servo.java
	pi4j-core/src/main/java/com/pi4j/servo/impl/RPIServoBlasterDriver.java
Merge remote-tracking branch 'Pi4JUpstream/develop' into develop
ignore nb project file
Removed these - apparently on the refresh from origin they conflicted and didn't get removed correctly.
Auto Copyright updates
missing license header
fixed #102; incorrect ZIP download URLs
fixes #107
added support for Raspberry Pi Model A+
added support for digital pin debounce logic
fixed #106; MCP23S17 - not using SPI address, expose IOCON
Merge pull request #108 from reeftinker/fix-107

fixes #107
updated 'BoardType' enum in 'SystemInfo' class to include Model A Plus
merge pull request #49
fixed "rm" on deb control file: postrm