alpha 0.8

CHANGELOG

• add 'time' module
• add 'statistics' module
• better error messages
• renamed noug_version, os_name, os_release, os_version to __noug_version__, __os_name__, __os_release__, __os_version__
• add __symbol_table__ and __base_value__
• (change in python source code) add py2noug
• (change in python source code) add draft for attributes
• (source code downloads only) add build.bat

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