Added a non-modifiable return value to allow operator[] to be used on const objects.
Also added WString.h to Arduino.h to make String appear as a first class type.
Merge pull request #20 from zfields/fixWString

Added a non-modifiable return value to allow operator[] to be used on co...
Fix hardware serial, add word
Implemented the Print methods for Printables and String and re-implemented the print number methods.
Re-implemented the print methods for integers and longs so that they take base
Re-implemented the print methods for doubles so that it takes a digit parameter
Added PrintTests to test folder
Moved the SDK-specific Contribution Instructions into the README
Added Nuget Images
Adding on device wiring test suite.
Fixed the charset errors with apostrophe
Removed html tags from README
Fixed the DigitalPin tests to use the latest SDK NuGet
Merge pull request #19 from anthony-ngu/AddingPrintImplementation

Implemented the Print methods for Printables and String
Merge pull request #25 from zfields/wiringTestSuite

Adding on device wiring test suite.
Merge pull request #24 from anthony-ngu/UpdatingREADMEWithContribution

Updating README with contribution
Fixes NetworkSerial available and read methods.
Merge pull request #30 from connerbrooks/networkSerial

Fixes NetworkSerial available and read methods.
Merge pull request #23 from ooeygui/develop

Fix hardware serial, add word
Add Servo stub, fix Hardware serial to use Stream as a base class
Added Servo stub
Updated the tests to not depend on a specific version.