Add new utility based on plug-ins (for configuration).
 * Improve user interface.
 * Class name more explicits.
 * Auto detection Configuration.
Add StringHelper.cs to utility to provide some method on String.
 * Add AcEventConfiguration, ReaderConfiguration and ToUrlConfiguration.
 * Improve some stuff in interface/
Fix some minor logical bugs.
Update the documentation.
 * Improve interface to RplethTool.
Fix some orthography bugs.
Add technical documentation about Rplethtool.