1/ How to setup Substance Designer to call the python script functions
	- Go to the 'Tools/Preferences...' panel
	- Select the tab 'Projects'
	- Select the project you want in the 'Project Files' list
	- In the lower part, scroll down and go to the 'Scripting' group
	- In the 'Interpreters' group, select a python interpreter (ex: c:\Python27\python.exe)
	- In the 'Actions' group, for each action select the file that contains the functions (ex: INSTALL_DIR\tools\scripting\functions.py)
	- Close the 'Preferences' window by pressing 'OK'

2/ Python script modules
	- functions.py
		- contains all the functions called by the application
		- The function parameters names MUST NOT be changed because they are used by the application to identify each parameter and set their values
	- include/substance.py
		- contains high level services to use Substance sata (see file content for furher information)
			- Context: Class used to purpose information on the application environment
			- UrlAliasMgr: Class that contains Url Aliases information
			- SBSDocument: Class used to get information on a .sbs file
			- SBSDependency: Class that contains information on a package dependency as defined in a .sbs file
			- SBSResource: Class that contains information on a substance resource as defined in a .sbs file
			
	- include/base.py (internal use only)
		- contains all the services related to the communication between the application and the functions
