OpenERP Technical Memento v0.6.3

OpenERP Technical Memento v0.6.3 released

Changelog: 

[ v0.6.3 - 2010/03/22 ]
* Added mention of __openerp__.py for v5.2
* Corrected OSV generic accessor example
* Improved ORM usage example: indentation, osv name
  and use of context
* Corrected '--relaxng' argument in tip about grammar
* Corrected tree/list example to include state field
  for colors
* Added default value for day_length in calendar view
* Minor typos and formatting