* Collect informations by JSON into a single call and cache it.
* Use class and cleaner API
* Do not relay on scripts on erp5_configurator, make possible configure
any kind of instance
* use simple HTTP requests to edit information into ERP5
* Be much more assertive and try to circuvent and prevent possible problems that could happens.

0.3.1dev7 refers to non existing file.

This will allows to use it for several different external method
calls

Conflicts:
	CHANGES.txt
	setup.py
	software/erp5/software.cfg
	software/erp5testnode/software.cfg