[Qgis-developer] ftools to processing : geometry validity checker

[Arnaud Morvan]

Today at the hackfest.

I will port the ftool geometry validity checker to processing,
with small implementation differences:
     I will add method selector [QGIS|GEOS] as a parameter
     I will make two outputs:
         one for the valid ones
         one for the invalid ones with one supplementary field for the 
reason/comment of the invalid state

Comments are welcome

Arnaud