Renames Logger.setLoggerLevel method.
Removes unused method Logger.setLevel(Logger logger, String level).

Renames Logger.setLoggerLevel method.
Removes unused method Logger.setLevel(Logger logger, String level).

Inserts messages in right order after a stamp reset.
Adds the missing interface.

Inserts messages in right order after a stamp reset.

charset.

Fix issue about serialized size of String objects.
Use UTF-8 default to serialize String objects, allows to fix a specific
charset.