Handle multipolygon in has_holes function
requested to merge 14-attributeerror-qgsmultipolygon-object-has-no-attribute-numinteriorrings into master
Update of the has_holes function in the module utils.py : verification of the presence of a hole for each polygon that composes a multipolygon
Add unit tests on the has_holes function for multipolygon geometries
Closes #14 (closed)
Edited by Jacky Volpes