Remove temporary update.
Refactoring String output operator; moved from IOStream to String.

1. Improving handling of end of line string.
2. Predefined strings for CR, LF, CRLF.
Check refactoring of String/IOStream.
Clean up; improve coding style and strengthen interfaces.

1. Rerun benchmarks to gather new statistics.
2. Unify code style for empty member functions and constructors.
Adding tool and protocol to breadboard; support ArduinoISP.