More advanced and forceful treatment of negatives
More advanced and forceful treatment of negatives

* String recognition for these special "cutoff" dummy processes in
* ecoinvent

* Option to force all flows positive, regardless of any other
* consideration

* Fewer arguments upon initialization of object:
	* prefer_pickles now has to be set manually, as this is mostly
	* useful during development

 Your branch is up-to-date with 'origin/dev'.

 Changes to be committed:
	modified:   ecospold2matrix.py

majeau-bettez/ecospold2matrix