improved structure and definitions update

Recently we finished some discussion and analyses , to improve the methodology and definitions used, for the methodology, the tool and the indicator. No essential changes, but concerning improved positioning, improved defining of system borders , introducing a levels of impact approach , energy-mass position, role of partial functional units, role of Labor, converting to EL factor g and f, better Recycling definitions, etc. See the documents added under “ The Method” for full versions. Findings will be incorporated in revised web page texts as well.