Version 1.2.0
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Added:
	- Root folder can include disk free spaces
	- Root folder always contain an 'unknown files' parts, which represents the files that can not be scanned (due to acces restrictions for exemple) and lost space.
	- Multiple color styles (random or linear colors)
	- New "Details" window, including the full list of current subfolders
	- Command line support (see help for details) for scripting use
	- New toolbar containing analyse shortcuts with computer's drives
	- New wait form when you delete a folder
	- Cursor appearance change on hovered folders
Improved: 
	- Graph export available in PNG format.
	- Full support of Windows Vista (UAC support for explorer integration)
	- Main window size is memorized on exit.
	- Scan button is now the default action (equivalent to Enter key).
Fixed:
	- some minor bugs
Other:
	- Licence replacement: HDGraph is now shipped under the CeCILL v2 licence.