Working on saveing the grouping (not working yet)
see: http://viralpatel.net/blogs/spring-mvc-multi-row-submit-java-list/
problem is that the items are getting doubled, need to save the key to make sure the correct db record is being updated
saving of the grouping works :) (code coverage 71,5%)
now copy-paste for the negative items
Grouping of items works ! (code coverage 74,8%)
Merge branch 'Working_branch'