Starting branch 4.0
* FileTools: To retrieve the text content of a file as a String
* ResourceTools: Add a method to copy a resource to a file
* XslTransformation: Transform an XML using XSL
Update copyrights
Use only Java6 classes
FileSystemUsage: To retrieve the usage of the partitions space
To retrieve the usage of the memory of the system
Rename project st-light to st-light6
Rename light package to light6
Fix project name
Version 4.0.0
Update the process to clean the workspace
Fix package name